Question

1 Mark
Q-3 The area of base of a right circular cylinder is 15400
Sq. cm and its volume is 92400 cubic cm. Find curved
surface area.
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Answer 1

Answer:

838.6312cm^2

Step-by-step explanation:

πr^2= 15400

3.14×r^2= 15400

r^2= 15400/3.14

r^2= 48400

r= √(4×121×100)

r= √2^2×11^2×10^2

r= 220

volume of cylinder= πr^2h

92400= 22/7×(220)^2×h

(92400×7)/22= 48400×h

h= .607

CSA of cylinder= 2πrh

= 2×3.14×220×.607

= 838.6312cm^2

Answer 2

Answer:

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