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Mathematics

Grade9

Easy

Question

A cone has a height of 10 cm and a base radius of 9 cm. Find the volume of this cone.

33cm³
848cm³
332cm³
16cm³

hint Hint:

The volume of a cone is given by $1 third cross times straight pi cross times left parenthesis base space radius right parenthesis squared cross times height$

The correct answer is: 848cm³

Volume = $fraction numerator 1 over denominator 3 end fraction pi r to the power of 2 end exponent h$
$equals fraction numerator 1 over denominator 3 end fraction cross times pi cross times 9 to the power of 2 end exponent cross times 10$
$equals 270 pi$
= 848 centimeters³

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