3. The radius and the height of a right circular
cylinder are 7 cm and 24 cm respectively. Find
(i) area of the base (ii) area of the curved
surface. (π 22 /7)
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Answer:
Radius of cylinder (r)=7cm
Height of cylinder (h)=15cm
(i) area of the base =πr^2
=(22/7) (7)^2
=154cm
(ii) Curved Surface Area =2πrh
=2×(22/7)×7×15
=660cm
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