Question

A solid right circular cone is cut into two parts at the middle of its height by a plane parallel to its base . Find the ratio of the volume of smaller cone to the whole cone.

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Answer 1

Ello user !!!!!!!

Here is your answer,

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Let the height and the radius of whole cone be H  and R respectively.

The cone is divided into two parts by drawing a plane through the mid point of its height and parallel to the base. 

Let the radius of the smaller cone be r cm.

In ∆OCD and ∆OAB,

∠OCD = ∠OAB  (90°)

∠COD = ∠AOB  (Common)

∴∆OCD ∼ ∆OAB  (AA Similarity criterion)

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HOPE THIS HELPS YOUU :)

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Answer 2

Answer:

thanks...I think u got help.....bye

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