Question

The height and the slant of a cone are 12cm and 28cm representively. Find the volume of cone.

Answer 1

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Answer 2

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Hey mate !!

Here's your answer !!

So Let the slant height be ' l ' 

Height be ' h '

Radius be ' r '

So l = √( h² + r² )

So r = √( l² -  h² )

r = √( 28² - 12²)

r = √( 784  - 144 )

r = √640

Hence Volume of Cone = 1/3 * 3.14 * r² * h        ( Taking Pi = 3.14 )

= 1 / 3 * 3.14 * (√640)² * 12

= 3.14 *  640 *12 /3 

= 3.14 * 640 * 4

= 8038.4 cm³

Therefore Volume of cone is 8038.4 cm³

Hope this helps !!

Cheers !!
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