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A triangle made from 12 matchsticks 2019-01-20
Palesa pose la question :
How many different types of triangles can be made with a perimeter of 12 matches?
Penny Nom lui répond.
The area of a trapezoid 2018-09-24
An other pose la question :
AB-272 feet: AC 690 feet; CD-330 Feet; DA-669Feet Calculate the area in feet and Acres.
Penny Nom lui répond.
The sides of a circle 2018-04-10
Reid pose la question :
Hello,
I recently was wondering about whether or not a circle has an infinite number of sides, and I ended up searching it on your website. I saw that you guys found the question to be too ambiguous or something of that nature, and I thought about your process of reasoning involving vertices and such. I soon realized that I may have come up with the solution to the question, but I want to confirm it with you guys. Allow me to explain:
A circle, unlike any other typical 2 dimensional polygon, can sustain an infinite number of straight lines coming in contact with only one point on it. A square, for example, cannot. A square only has 4 locations that can sustain a such a line, each of those being its corners. The flat edge of a square cannot support a tangential line, because the line would either be crossing the edge of the square or coming into contact with multiple points along its edge.
This concept is consistent in every 2 dimensional polygon: pentagons sustain 5 locations for tangential lines, hexagons 6, nonagons 9, etc. The reason a circle has an infinite number of sides is simply the fact that it must have an infinite number of "corners", assuming it can be defined as a polygon like any of the shapes I described above.
Corners can only exist assuming there is two sides coming into contact with one another. If there is an infinite number of corners in the circle, which is apparent due to the above reasoning, there must be an infinite number of sides coming into contact with each other. Thus, a circle is a polygon that consists of an infinite number of sides coming into contact with each other.
Please review this reasoning and let me know if it is solid.
Thank you!

Penny Nom lui répond.
Related rates 2018-02-11
angelo pose la question :
hi admin please help me answer this question. thank you! At a certain instant of time, the angle A of a triangle ABC is 60 degrees and increasing at the rate of 5degrees per second, the side AB is 10cm and increasing at the rate of 1cm per second, and side AC is 16cm and decreasing at the rate of 1/2 cm per second. Find the rate of change of side AB?
Penny Nom lui répond.
The number of sides of a polygon 2016-07-23
Shriya pose la question :
All the angles of a polygon are either 155° or 140°.
There are twice as many angles of 155 °or 140°.
Find the number of sides of the polygon

Penny Nom lui répond.
The sides of a triangle 2016-03-15
Hitarth pose la question :
Why we cannot construct a triangle ofngiven sides 5cm,5cm and 10cm?
Penny Nom lui répond.
The midpoints of the sides of a quadrilateral 2016-02-05
Andrea pose la question :
The segments, joining, in order the midpoints of consecutive sides of a quadrilateral form a parallelogram.
Penny Nom lui répond.
A sand box with 14 sides 2012-07-10
Tom pose la question :
Want to build a sand box for a pool that is fourteen foot round wanted to make it in fourteen pieces of wood what angle would each piece be and how long would each piece be
Harley Weston lui répond.
A trapezoid 2011-08-02
Nazrul pose la question :
How can I draw a trapezoid whose parallel sides and other two sides are given.
Chris Fisher lui répond.
Vertices and sides of a polygon 2011-03-04
RINA pose la question :
My questions is : would a vertices and sides of a polygon be the same number.  For example, a octagon it has 8 points and 8 sides. Am i correct?
Robert Dawson lui répond.
The sides of an equilateral triangle 2011-01-27
Cristal pose la question :
Hello :) How can i find the sides of an equilateral triangle when only given the height 10m?
Penny Nom lui répond.
The third side of a triangle 2010-12-28
andrea pose la question :
in triangle abc, a-b=5 and the area is 50cm2.If angle c- 90degrees, find the length of c.
Penny Nom lui répond.
Sides and diagonals of a polygon 2010-11-25
nicky pose la question :
The sum of sides of two polygons is 12 and the sum of their diagonals is 19. What kind of polygon are they?
Penny Nom lui répond.
The sides of a triangle 2009-07-08
Susan pose la question :
The second side of a triangle is 5ft more than the length of the first side. The third side of the triangle is 10ft less than the length of the first side. The perimeter of the triangle is 61ft. Find the lengths of each side of the triangle.
Thank you so much!

Penny Nom lui répond.
The sides of a parallelogram 2009-03-17
Sami pose la question :
If ABCD is a parallelogram, prove that line AB is congruent to line CD. Clearly state your reasons and conjectures.
Penny Nom lui répond.
A six sided lot 2008-06-25
Zack pose la question :
Please help me find the area of my lot. I am sending a fax of the drawing and dimensions. Zack
Harley Weston lui répond.
The sides of an octagon 2008-05-07
Frank pose la question :
Question from Frank, a parent: Hi, Need to lay out a 10 ft. diameter octagon on the ground. What is the length of the sides ? And the angles ?
Harley Weston lui répond.
The three sides of a triangle 2008-04-16
Bridgett pose la question :
The sum of the lengths of any 2 sides of a triangle must be greater than the third side. If the triangle has one side that is 11 CM, and the second side of the triangle is 4 cm less than twice the third side, what lengths do the 2nd and 3rd side have to be?

between 0000-00-00 and 9999-99-99


Stephen La Rocque lui répond.
Side lengths and angles in a regular octagon 2008-04-09
Lori pose la question :
I am a builder and need to find the length of the sides of an octagon. I know the length between the parallel sides (26 feet). What is the length of each side? What is the angle measurement?
Harley Weston lui répond.
Sides and vertices 2007-11-17
derek pose la question :
What is the correct name for a 2D geometric shape that would look like one slice from a round pizza and how may sides and vertices would it have? I believe you would say it has one vertex and two sides with the curved boundary not resulting in vertices or a side. Your help is much appreciated.
Chris Fisher and Walter Whitelty lui répond.
Making a box with a particular volume 2007-06-20
Kimberly pose la question :
How do you convert 487 cf into box?
Stephen La Rocque lui répond.
A square 2007-03-02
Jake pose la question :
how many sides does a square have?
Sara Ulmer lui répond.
What is the point of intersection of two sides of a polygon? 2007-01-23
Tyler pose la question :
What is the point of intersection of two sides of a polygon?
Stephen La Rocque lui répond.
What should the length of the other sides? 2006-06-20
Kevin pose la question :
if a property is basically square for 5 acres and one side is 340 feet what should the length of the other sides?
Stephen La Rocque lui répond.
The sides of a hexagon 2006-05-24
Emilio pose la question :
I need to find the measure of the sides of the hexagon that the area is 58 square units.
Stephen La Rocque lui répond.
The perimeter of a regular octagon 2006-04-20
Martin pose la question :
I would like to make an octagon out of 2x4 lumber. I know that the lumber needs to be cut at 67.5 degree angles, but how do I determine the length of each piece if I want to make, say, a 2.5 ft diameter octagon?
Stephen La Rocque lui répond.
The sides of an octagon 2005-11-02
Royce pose la question :
I understand there is a simple calculation to determine the sides of an octagon when you know the distance across the parallel flats. something like .447 . can you help?
Penny Nom lui répond.
The sides of a hexagon 2004-11-01
Timothy pose la question :
I have a perfect Hexagon in which i know the measurement across is 10m. Not from point to point, but from the middle of one side directly across to the middle of the other. From that measurement, how can I determine the length of 1 side.
Penny Nom lui répond.
The third side of a triangle 2004-07-28
Annette pose la question :
How do you find the length of a triangle side if you know two sides?
Penny Nom lui répond.
A pyramid 2004-05-11
Quiana pose la question :
I am a student and I have the following questions I need to answer for homework:
How many sides, vertices, and edges does a pyramid have?

Penny Nom lui répond.
The sides of a circle 2004-01-07
Helena pose la question :
My name is Helena and I am 10 years old. On a resent math exam I was asked the question" How many sides does a circle have?" and I wrote down none. The teacher said the answer was one side.
Chris Fisher lui répond.
The side length of a regular octagon 2003-08-09
Rich pose la question :
If I know the distance between the parallel lines of an octagon and want to find the length of the sides, can I just divide that distance by 2.414 to reveal the length of the sides? I work construction and just curious if I am figuring it right.
Penny Nom lui répond.
Some shapes 2003-04-29
Suzanne pose la question :
  1. What shape has 12 edges all the same length?

  2. What shape has 3 surfaces and 1 is curved?

Penny Nom lui répond.
A rectangular prism 2003-01-09
Julie pose la question :
How many faces on a rectangular prism and how many bases? Can the base also be a face and can a face also be a base?
Diane Hanson lui répond.
The slopes of the sides of the Great Pyramid 2002-02-09
Christina pose la question :
The Great Pyramid is the largest of the Egyptian pryamids. When it was built, it was 481 feet tall and had a square base with 755-foot sides. The pyramid has two different slopes-one along its sides and the other along its edges. Which slope is steeper?
Penny Nom lui répond.
A polygon with five sides 2001-10-03
A student pose la question :
I was asked a question in 5th grade today that goes: i am a polygon with five sides and 2 right angles what do i look like and what is my name
Penny Nom lui répond.
How many sides does a circle have? 2001-05-16
Georganne pose la question :
How many sides does a circle have?
My son answered "infinate" on a test and was corrected. The school insists the answer is 0.

Chris Fisher and Denis Hanson lui répond.
The sides of an octagon 2001-04-13
Craig pose la question :
How do I figure the length of the sides of an octagon when all I know is the diameter (4.375).
Penny Nom lui répond.
 
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