Posted by Andrea on Tuesday, May 29, 2012 at 5:43pm.
a circular cylinder has a base with a radius of 7.5 cm. and a height of 12 cm. a rectangular prism has a square base and height of 8.0 cm. if the cylinder and the prism have equal volumes, what is the length of the base of the prism to the nearest tenth?

geometry  PsyDAG, Tuesday, May 29, 2012 at 9:36pm
The volumes are equal, so the equation below fits. Insert values and solve for L.
π*r^2*h = h*L^2

geometry  Ann, Monday, May 27, 2013 at 10:05pm
16.3 is the length of the base rounded to the nearest tenth.
3.14 x 7.5 x 7.5 x 12 = 2119.50
16.28 x 16.28 x 8 =2,120.3
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