A cone is cut parallel to its base at half its height. What is the ratio of volumes of the two parts?
Show answer & explanation
Correct answer: A
Explanation
Cut at half the height ⇒ Height of the smaller cone = H/2
Volume = (Height)³
Small : Large = (1/2)³ = 1 : 8
Frustum = Large − Small = 8 − 1 = 7
Small : Frustum = 1 : 7