Question

Find CSA of each of the of the following cylinders

Answer 1

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Answer 2

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Here is your answer :
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i) Given,

r = x. h = y

$csa \: of \: cylinder = 2\pi \: rh \\ \\ = 2 \times \frac{22}{7} \times x \times y \\ \\ = 44xy / 7 ii) d = 7 r = 3.5 h = 10 [tex] = 2 \times \frac{22}{7} \times 3.5 \times 10 \\ \\ = 44 \times 0.5 \times 10 \\ \\ = 440 \times 0.5 \\ \\ = 220 {cm}^{2}$

iii) r = 3 h = 14

$= 2 \times \frac{22}{7} \times 3 \times 14 \\ \\ = 44 \times 3 \times 2 \\ \\ = 44 \times 6 \\ \\ = 264 {cm}^{2}$

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