find the area of the curved surface and the total surface of a cylinder closed at both ends with base 8.4 cm and radius and height 15cm.
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Answer:
Radius of cylinder (r)=7cm
Height of cylinder (h)=15cm
Curved Surface Area =2πrh
=2×(22/7)×7×15
=660cm2
Total Surface Area =2πr(h+r)
=2×(22/7)×7(15+7)
=2×22×22
=968cm2
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