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triangular

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A triangular garden 2020-05-24
yoonji pose la question :
the 3 sides of a triangular garden measure 200 ft., 250 ft., and 300 ft., respectively. the garden is to be divided by a line bisecting the longest side and drawn from the opposite vertex. what is the length of the bisecting line?
Penny Nom lui répond.
A trough with a triangular cross section 2016-05-21
Clarice pose la question :
A trough having an equilateral triangle end sections has sides equal to 0.4 m and 7m long.what is the volume of the liquid in the container if the depth of the water is one half the depth of the trough?
Penny Nom lui répond.
Sloping my yard away from my house 2016-04-15
Harold pose la question :
I need to slope a area of my yard away from my house and garage. The length of my house is 80 feet long and i need to slope it 22 feet away. I want to raise the dirt at the foundation by 6 inches and slope it down to nothing at the width of 22 feet. How much soil would i require?
Penny Nom lui répond.
A triangular shaped garden 2016-01-13
Demetrie pose la question :
Dwayne's garden is triangle-shaped with two equal sides and a third side that is 4 ft more than the length of an equal side. If the perimeter is 49 ft, how long is the longest side?
Penny Nom lui répond.
The perimeter of a triangular plot of land 2016-01-11
Janelle pose la question :
I need to fence off 6.5 acres. The plot is triangular shape. How many feet would I be fencing off?
Penny Nom lui répond.
The surface area of a triangular prism 2015-06-03
Alex pose la question :
Find the surface area of a triangular prism with Isoceles triangles and dimensions 4 feet by 6 feet
Penny Nom lui répond.
A tennis ball in a triangular prism 2014-10-06
Anna pose la question :
Hi, I need to find the the base and the height of a triangular prism, but I only know the diameter of a tennis ball that fits exactly in the triangular container.. The diameter for the ball is 8.50cm. Can you help me find the formula? Thank you!
Penny Nom lui répond.
A barge of triangular cross section 2014-08-18
tushar pose la question :
a barge of triangular cross section is 20m long 12 m wide and 6m deep.its floats in SW at a draft if 4m find its displacement
Penny Nom lui répond.
A gravel pile in the shape of a triangular pyramid 2013-04-04
Casey pose la question :
Hello
Right now I am stuck and I feel embarrassed because I feel like the answer is so easy I should know it.

I am working on a project and need to find a volume of gravel it will take to occupy this triangular prism like area. I am not sure what formulas I should use whether it be that for the volume of a pyramid or something more complex? Basically it forms a right triangle at one side then from there all points slope to one singular point about 10412mm away.
I am attaching a picture drawn up in paint with the actual dimensions to clear up any confusion.

Thank you for any help. Casey

Penny Nom lui répond.
Question 2013-04-04
Casey pose la question :
Hello
Right now I am stuck and I feel embarrassed because I feel like the answer is so easy I should know it.

I am working on a project and need to find a volume of gravel it will take to occupy this triangular prism like area. I am not sure what formulas I should use whether it be that for the volume of a pyramid or something more complex? Basically it forms a right triangle at one side then from there all points slope to one singular point about 10412mm away.
I am attaching a picture drawn up in paint with the actual dimensions to clear up any confusion.

Thank you for any help. Casey

Penny Nom lui répond.
A railroad embankment 2013-01-22
clint pose la question :
the pennsylvania railroad found it necessary,owing to land slides upon the roadbed,to reduce the angle of inclination of one bank of certain railway cut near pittsburgh,pa.,from an original angle of 45 degrees to a new angle of 30 degrees. the bank as it originally stood was 200 ft.long and had a slant length of 60 ft.. find the amount of the earth removed, if the top level of the bank remained unchanged.
Penny Nom lui répond.
The volume of a wedge 2012-05-28
olwethu pose la question :
volume of wedge that have side 3,3 cm and 6,2 cm and 20 cm long?
Penny Nom lui répond.
Triangular numbers that are square 2011-12-27
Luke pose la question :
The “TnS” is a positive integer which is both Triangular number and Square number. For example, 36 is a “TnS” number since 36=1+2+3+4+5+6+7+8 (Triangular number) and 36=6x6 (Square number). What is the next “TnS” which is greater than 36?
Penny Nom lui répond.
The volume of a triangular shaped aquarium 2011-05-07
Jeff pose la question :
HI, I searched the site but really couldn't find my answer, at least that I could understand! I have a triangular shaped aquarium ( think of a cube, except its an equal triangle shape). all 3 sides are 48 inches, and it is 34" tall. Can you please tell me what the volume is in gallons? Thanks!
Penny Nom lui répond.
The volume of a triangular pyramid 2011-04-15
Chelsea pose la question :
There is a triangular pyramid which is an equilateral on the base with all sides 16.5 and the height is 25. I have to find the volume. Please help!
Penny Nom lui répond.
Pyramids and parallelograms 2010-04-01
Vivi pose la question :
Hi, my name is Vivi, and math teacher is giving a geometry test. I tend to forget how to find the surface area and volume of triangular pyramids and parallelograms. Do you have a way of remembering how to find the surface area?
Harley Weston lui répond.
A champagne pyramid 2010-03-22
Kathy pose la question :
I have 680 champagne glasses and my pyramid can only be 15 levels high. How many glasses need to be on each level? Is there a formula I can use?
Robert Dawson lui répond.
A triangular prism 2010-01-13
Breon pose la question :
what is the formula for a triangular prism?
Robert Dawson lui répond.
A triangular pyramid 2010-01-05
ally pose la question :
how many vertices, edges, faces in a triangular pyramid?
Robert Dawson lui répond.
A triangular shaped ditch 2009-11-12
Tim pose la question :
I am planning on constructing a triangular shaped ditch the measures 550 meters in length, 6 meters wide at the surface, .3048 meters at the invert of the ditch and 2 meters deep.

How many cubic meters of material will have to be excavated to construct this ditch

Robert Dawson lui répond.
Triangular Numbers 2009-06-16
Chinonyerem pose la question :
Question from Chinonyerem, a student:

Each of the numbers
1 = 1, 3 = 1+2, 6 = 1+2+3, 10 = 1+2+3+4 ,...
represents the number of dots that can be arranged evenly in an equilateral
triangle:
                            .
                  .        . .
        .         .       . . .             ...
.      . .      . . .    . . . .
This led the ancient Greeks to call a number TRIANGULAR if it is the
sum of consecutive integers, beginning with 1. Prove the following facts
concerning triangular numbers:
(a) A number is triangular if and only if it is of the form n(n+1)/2 for some n >= 1
(b) The integer n is a triangular number if and only if 8n+1 is a perfect square
(c) The sum of any two consecutive triangular numbers is a perfect square
(d) If n is a triangular number, then so are 9n+1, 25n+3, and 49n+6
Penny Nom lui répond.

A triangular pyramid 2009-02-26
Craig pose la question :
Can you help with this question:
Write the names of the faces and the number of each kind of face on a triangular pyramid?

Penny Nom lui répond.
Solid figures 2009-02-10
Rebecca pose la question :
I need to know the names of solid figures. I have several pictures that I need to answer what type they are. Thanks, Rebecca 3rd grade
Penny Nom lui répond.
A triangular pyramid 2009-02-06
kamran pose la question :
what would be an example of a triangular pyramid
Stephen La Rocque lui répond.
Faces, edges and vertices 2009-02-04
sheila pose la question :
what is the relationship between the number of faces and the number of edges of a triangular pyramid ?
Penny Nom lui répond.
The volume of a prism 2009-01-19
Mady pose la question :
What is the general equation used to find the volume of a triangular prism?
Robert Dawson and Harley Weston lui répond.
Triangular prisms and pyramids 2009-01-10
KJ pose la question :
What are some items found in a home or school that could be considered a triangular prism or triangular pyramid?
Robert Dawson and Penny Nom lui répond.
A triangular field 2008-08-15
joneka pose la question :
Barb walked five times aroun a triangle field all together she walked 435 feet the first side of the triangle fiel is 23 feet the length of the other two sides are of the same measure. What are the dimensions of the triangle field?
Penny Nom lui répond.
Triangular prisms and pyramids 2008-03-03
LORENA pose la question :
hi i am in yr 6 and i need to know how many faces,vertices and edges these shapes have..
. TRIANGULAR PYRAMID
. TRIANGULAR PRISM

Penny Nom lui répond.
A square and an equilateral triangle 2008-02-10
Emily pose la question :
A square pen and a pen shaped like an equilateral triangle have equal perimeters. Find the length of the sides of each pen if the sides of the triangular pen are fifteen less than twice a side of the square pen.
Stephen La Rocque lui répond.
A triangular lot 2007-10-17
Brian pose la question :
Seeking the square footage of a triangular property lot, dimensions are: 620 X 620X 720.
Penny Nom and Melanie Tyrer lui répond.
A triangular trough 2007-07-19
janine pose la question :
A trough is formed by nailing together, edge to edge, two boards 11 ft. in length, so that the right section is a right triangle. If a 15 gallon of water are poured into the trough and if the trough is held level so that a right section of water is an isosceles right triangle, how deep is the water? (231cu.in=1 gal.)
Penny Nom lui répond.
The area of a triangular pyramid 2007-07-18
Jhezelle pose la question :
What is the formula of finding the surface area of a triangular pyramid?
Penny Nom lui répond.
The number of blocks on the face of a pyramid 2007-06-27
Heather pose la question :
I was wondering if there was an equation in order to calculate the number of blocks on the face of a pyramid. For example:

X
X X
X X X

Is there a specific formula in order to calculate that there are 6 blocks here? Thank You, Heather

Harley Weston lui répond.
The volume of a triangular prism 2007-06-01
Hannah pose la question :
How do I find the area of the base of a triangular prism, so that I can find the volume by using the equation on the attachment. The formula is that volume equals one half times (base times height) times triangle height. Thank you for your help. Hannah
Penny Nom lui répond.
A triangular prism 2007-03-26
Tom pose la question :
Hi, I need to find a container in the shape of a triangular prism that will fit four table tennis balls (this is for a math project!). These balls have a diameter of 4cm, so a radius of 2. I know that the formula for finding an incircle from a triangle is:
radius of incircle = 2area of triangle / perimeter of triangle
But I need to know the length of one side of the triangle from the incircle (the triangle needs to be equalateral). Can you help me find a formula for this? Thanks so much! Tom

Penny Nom lui répond.
Surface area of a triangular prism 2007-02-21
Katrina pose la question :
What is the formula to finding the surface area of a triangular prism?
Gabriel Potter lui répond.
a specific 3-d shape 2007-02-12
Robby pose la question :
What three dimensional shape has 6 vertices, 5 faces, and two congruent triangular bases? I can't find the answer to this question anywhere. Your help will be appreciated. Thanks, Robby Craig
Pam Fowler, Gabe Potter and Walter Whiteley lui répond.
Water in a triangular trough 2007-01-30
Trina pose la question :
the trough is 5 feet long and its vertical cross sections are inverted isosceles triangles with base 2 feet and height 3 feet. water is draining out of the trough at a rate of 2 cubic feet per minute. at any time t, let h be the depth and v be the volume of water in the trough.
a. find the volume of water in the trough when it is full
b. what is the rate of change in h at the instant when the trough is .25 full by volume?
c. what is the rate of change in the area of the surface of the water at the instant when the trough is .25 full by volume?

Penny Nom lui répond.
1, 3, 6, 10... 2006-12-15
Lisa pose la question :
What is the nth term for the sequence, '1, 3, 6, 10...' and could you say how you got the anwser.
Stephen La Rocque and Penny Nom lui répond.
The surface area of a triangular prism? 2006-10-29
Amanda pose la question :
What is the formula for the surface area of a triangular prism?
Haley Ess lui répond.
The volume of a triangular box 2006-09-12
Irene pose la question :
How do I find the volume of a triangular box?
Penny Nom lui répond.
A triangle of 50p pieces 2006-02-22
Stuart pose la question :

Ok, so i am collecting 50p pieces and arranging them on my desk in the shape of a triangle.
eg
50p
50p 50p
50p 50p 50p
50p 50p 50p 50p

I want to work out how much money I'm saving just by knowing how many rows of coins there are. If i can work out how many coins there are just by knowing how many rows I have I can just divide by 2 to find out the amount in dollars.


Penny Nom lui répond.
Shapes 2005-11-12
Tonya and Hailey pose la question :
MY THIRD GRADERS TEACHER HAS SENT HOME HOMEWORK ASKING FOR THEM TO FIND REAL-WORLD OBJECT IN MANY DIFFERENTS SHAPES A FEW HAVE US STUMPED
Penny Nom lui répond.
A triangular pyramid 2005-10-22
Stacee pose la question :
When stacking oranges to form a triangular pyramid, each orange touching 3 oranges below it. In order to have a pyramid with 6 layers, how many oranges should be on the bottom layer?
Penny Nom lui répond.
A triangular lot 2005-05-21
Linda pose la question :
I am looking to purchase a piece of property, and I need some help trying to figure out the square footage of the land. I know that normally if I multiply the length and width I could get my answer. However, this piece of land is an odd shape and has 3 measurements. Can you please help me.
The measurements for this piece of land is:

97.8'
201.2'
139.7'

Penny Nom lui répond.
A triangular prism 2002-10-30
Daniel pose la question :
I was wondering what a triangular prism was.
Diane Hanson lui répond.
A triangular prism 2002-04-28
A student pose la question :
Need the formula for the surface area of a triangular prisim?
Penny Nom lui répond.
Triangular numbers 2002-04-26
Anika pose la question :
Can you please tell me what a triangular number is?
Penny Nom lui répond.
A triangular pyramid 2001-05-14
Kumar pose la question :
In a Pyramid OABC, all the three sides of the base: a, b, c are known. Also known are the angles between the three sides from the vertex O: Angles AOB, BOC, COA.

With this information, is it possible to calculate the lengths of the three sides: OA, OB & OC.
Chris Fisher lui répond.

Volume and surface area of a cylinder and a triangular prism 2001-03-31
Kevin pose la question :
I was wondering how do you find the volume and surface area of a cylinder and a triangular prism.
Penny Nom lui répond.
Triangular numbers and square numbers 2000-03-02
Emily McCallum pose la question :
Would someone find me some math activities using triangular numbers and square number. Especially acitivities that actually form the shapes. They need to be at the 5th grade or 6th grade level. But you can not find anything that can be tauht at these level, that fine. I just need to be able to teach this new subject or kind of math to my kids.
Rick Seaman and Penny Nom lui répond.
Pyramids and prisms 2000-01-18
Tyler pose la question :
What's the definition of a Triangular Prism and a Triangular pyramid.
Penny Nom lui répond.
Cannonballs 1999-01-27
Roger King pose la question :
How many cannonballs can be stacked in a triangular pyramid?
Penny Nom lui répond.
Triangular Numbers 1998-10-30
Matt pose la question :
i would like to know about triangular numbers and it history i would also like to know about the history of prime numbers thank you
Chris Fisher lui répond.
Triangular Numbers. 1997-09-08
Rachel pose la question :
Show visually that the square number 16 is the sum of two triangular numbers. Which two?
Penny Nom lui répond.
 
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