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Question

The circumference of the base of a cone is 44 cm and its slant height is 25 cm. Find the volume of the cone.


A
1232 cm3
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B
1232000 cm3
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C

681 cm3

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D

6.81 cm3

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Solution

The correct option is A 1232 cm3

Given,

l = 25 cm

2πr=44

Hence,

r=44×72×22=7cm

we know (l2 = r2 + h2)

h=l2r2

h=25272

h=62549

h=24cm

Volume =13πr2h

=13×227×7×7×24

=1232 cm3


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