SSC CPO SI and ASI Model Paper 10

Question : 139 of 200

Marks: +1, -0

Find the volume (in

cm^3

) of a right circular cylinder whose height is 80 cm and circumference of its base is 132 cm.

Solution:

(4) Let r be the radius of the rightcircular cylinder.
Circumference of the base of cylinder= 132 cm

⇒2πr = 132

⇒r = 21

cm
∴Volume of cylinder

= πr^2h

= 22/7×21× 21× 80 =110880 cm^3

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