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	Two cones formed from two circular sectors		2018-11-30
		APARNA pose la question : The central angles of two sector of a circle are 60° and 120° . Using these sectors two cones are made. If the radius of the smaller cone is 5 cm, find the radius and base area of the larger cone. Penny Nom lui répond.
	Paving stones area		2018-08-08
		Declan pose la question : I am thinking of buying some reclaimed block paving stones. There are 750 pieces in total. 60% are L- 140mm x W -140mm x H-50mm 40% are L-170mm x W-140mm x H-50mm How much area will this cover? Penny Nom lui répond.
	A two digit number		2015-08-21
		Cameron pose la question : Write the 2 digit number that matches the clues. My number has a tens digit that is 8 more than the ones digit. Zero is not one of my digits. My number is ________. Penny Nom lui répond.
	Filling three holes with stones		2014-08-20
		mark pose la question : how many tonnes of hardcore/crushed stone would it take to fill 1 hole 9ft diameter 5ft deep and 2 holes both 3ft diameter and 5ft deep Penny Nom lui répond.
	Two cones		2014-04-09
		c.j pose la question : what is the length of the radius of the LARGER cone(the LARGER cone has a slant height of 15) when the SMALLER cone has a radius of 8 and a slant height of 12ft ,please help. Penny Nom lui répond.
	Cones, pyramids, cylinders and prisms		2012-09-13
		Roy pose la question : I read on this page that a pyramid is a special kind of cone, but a cone is not a pyramid. Does this apply to cylinders. Is a prism a special kind of cylinder, but a cylinder is not a prism? Robert Dawson lui répond.
	Two conical tanks		2011-02-17
		rustom pose la question : Two vertical conical tanks (both inverted) have their vertices connected by a short horizontal pipe. One tank, initially full of water, has an altitude of 6 ft. and a diameter of base 7 ft. The other tank, initially empty, has an altitude of 9 ft., and a diameter of base 8 ft. If the water is allowed to flow through the connecting pipe, find the level to which the water will ultimately rise in the empty tank (Neglect the water in the pipe.) Penny Nom lui répond.
	How long will you and your friend be able to talk?		2010-11-23
		beket pose la question : you and your friend leave your home town at the same time your friend travels by train 45 mph directly east while you travel by train 50 mph going directly south you are talking on cell phone but you plan charges extra if the phones are 100 miles apart. How long will you and your friend be able to talk before the charges increase? Penny Nom lui répond.
	The cube of an integer		2010-01-20
		Shankar pose la question : Can the cube of an integer end with 1985 ones ? Robert Dawson lui répond.
	how many ones are in 1 million		2009-09-17
		djuan pose la question : how many ones are in 1 million Harley Weston lui répond.
	Units digit		2008-07-02
		seemachauhan pose la question : How to find unit digit of various numbers and what are unit digits? Penny Nom lui répond.
	The sum of the ones		2007-10-29
		Hangsun pose la question : When 2 two digit numbers are added what is the greatest possible sum of the ones? Penny Nom lui répond.
	Tens and ones		2007-09-16
		julia pose la question : My son has come home with a math question "what i know about 10s and 1s" we're totally stumped any information you can provide would be greatly appreciated Harley Weston lui répond.
	Two cones		2006-12-30
		Cassie pose la question : A cone of radius 6 and height 12 and a different cone of radius 8 and height 12 intersect as shown in the figure below, where the vertex of one matches with the center of the base of the other. Find the volume of the intersection of the two cones (in exact form). Penny Nom lui répond.
	How fast is the water level rising		2006-08-12
		Erin pose la question : Water runs into a conical tank at the rate of 9ft3/min. The tank stands point down and has a height of 10 ft. and a base radius of 5 ft. How fast is the water level rising when the water is 6 ft. deep? (V=1/3 pi r2 h). Penny Nom lui répond.
	Pyramids and cones		2006-06-06
		Melissa pose la question : I was wondering if a cone can be considered a pyramid. Looking at many definitions of pyramids I have read that pyramids come to a common vertex. A cone comes to a vertex. But I also read that pyramids all have triangular faces. In this case a cone would not be considered a pyramid. Am I correct? Chris Fisher lui répond.
	Surface areas		2005-05-11
		Jessica pose la question : How can I demonstrate to my high school students the reason for the formulas for the surface area of a prism, right cylinder, and regular pyramid, and right cone? Penny Nom lui répond.
	Making a cone		2003-12-22
		Tracie pose la question : I am working on a craft project at home and I have been given the following information: 16" tall and 13" diameter at base, with 1 and 1/2 " opening at top. Is there a basic formula for creating a cone with this info? Claude Tardif and Penny Nom lui répond.
	A sphere inscribed in a cone		2003-08-10
		A student pose la question : A sphere with radius 5cm is inscribed in a right circular cone 20 cm in height.find (a) the base radius ,volume of the cone (b)volume of the shaded space( to 3 sig fig) Penny Nom lui répond.
	The vertex of a cone		2003-03-27
		Holly pose la question : I read your response to Callie about whether a cone has a vertex or not. Is it ONLY a vertex if both halves of the cone are together or can one half of the illustration have a vertex? Walter Whiteley lui répond.
	A paper model of a cone		2002-08-14
		Bruce pose la question : I have made a paper model of a cone, cut a sloping section, and removed the top. I have drawn the major and minor axis on the paper surface of the section. The major axis is not symmetrical about the minor axis. To me, this is not an ellipse. To me, an ellipse is a tubular section, because this gives a symmetrical major axis. What is your opinion? Walter Whiteley and Chris Fisher lui répond.
	Conics		2002-05-29
		Brooke pose la question : Which conic cannot be generated by an intersection of a plane and a double napped cone? Chris Fisher lui répond.
	Bicycles and phone calls		2001-02-08
		Sarah pose la question : A bicycle has a diameter of 66 centimeters. How many times must the tire rotate to travel 1 kilometer?explain answer. Becky want to make a long distance call to her friend Sarah from a pay telephone.She has $5.00 in change.The call costs $0.90 for the first three minutes and $0.24 for each additional minute.How long can Becky talk to Sarah? Leeanne Boehm lui répond.
	Phone Number Possibilities		2000-01-09
		Hamilton Weston pose la question : How do phone companies arrive at the possible number of phone numbers that can be generated for customers? Harley Weston lui répond.
	Nines and ones		1999-11-05
		Greg Miller pose la question : Using the numbers 1, 1, 9, 9, only once each, how can I create an expression that equals 10 using only the basic functions of addition, subtraction, multiplication, division, and/or parentheses? Claude Tardif lui répond.
	Pay Phone Problem		1998-02-26
		Shameq pose la question : Hi, I've been given a problem that I'm having some trouble with. I'd really appreciate any help. Here's the question (it's called the Pay Phone Problem) A pay phone will take only 10p, 20p, 50p, and £1 coins"(It's British). A woman has plenty of 10p and 20p coins. She has no other coins. She can put the coins into the pay phone in any order. INVESTIGATE the number of different ways, she could put the 10p and 20p coins into the pay phone. Penny Nom lui répond.
	Smith, Rodriguez and Jones		1996-11-07
		Rafayel Ambartsumyan pose la question : On a train, Smith, Rodriguez, Jones are the fireman, brakeman, and engineer, but not in that order. Also aboard the train are three businessman who have the same names, a Mr. Smith, a Mr. Rodriguez, and a Mr. Jones. ..... Who is the engineer? Penny Nom lui répond.

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