In the frustum of the cone, the top diagram is twice the bottom diameter. If the height of the frustum is h centimeters, find he height of the cone
-
A.
2h -
B.
2(pi)h -
C.
(pi)h -
D.
(frac{pi h}{2})
Correct Answer: Option A
Explanation
(frac{x}{r}) = (frac{x + h}{2r})
2 x r = r (x + h)
Total height of cone = x + h
but x = h
total height = 2h