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	A circle drawn around a equilateral triangle		2012-04-01
		From BIMAL: what is the diameter of a circle drawn around a equilateral triangle of size 6 cm Answered by Penny Nom.
	A circular cylinder circumscribed about a right prism		2012-01-25
		From Noriz: A cylinder is circumscribed about a right prism of altitude 12.6cm. Find the volume of the cylinder if the base of the prism is an isosceles triangle of sides 3cm by 3cm by 2cm. Hope you can help me with this. Answered by Penny Nom.
	Three circles inscribed in a circle		2008-12-18
		From seema: three equal circles each of radius 1 cm are circumscribed by a larger circle.find the perimeter of circumscribing circle? Answered by Robert Dawson.
	Equation of a circle circumscribing a triangle with given vertices		2007-10-01
		From Randy: How do I determine the equation of a circle when it is circumscribed by a triangle whose vertices are (-1, 6), (3, -2), and (2, 5)? Answered by Stephen La Rocque.
	Circumscribing a golden cuboid with a sphere: surface areas		2007-06-14
		From Ainslie: A golden cuboid is defined as a rectangular prism whose length, width and height are in the ratio of phi : 1 : 1/phi. Prove that the ratio of the Surface Areas of the golden cuboid to that of the sphere that circumscribes it is Phi : Pi. Answered by Stephen La Rocque.
	What is the diameter of the circle that contains this octagon?		2006-09-21
		From Dave: if the distance between two parallel sides of an octagon is 350 cm, what is the diameter of the circle that contains this octagon (ie. a circle that touches all eight corners)? Answered by Stephen La Rocque.
	The isosceles triangle of smallest area		2002-03-08
		From Lettie: can you find the isosceles triangle of smallest area that circumscribes a circle of radius of one? Answered by Walter Whiteley.

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