Question

solve it its important

Answer 1

Given,
$\: \: \: \: \: \: 2\pi \: r = 220 \\ = >r = \frac{220}{2\pi} \\ = > r = \frac{220 \times 7}{2 \times 22} = 35cm.$

Also given that
h = 2m = 200cm

Lateral surface area
$= 2\pi \times rh \\ = 2 \times \frac{22}{7} \times 35 \times 200 \\ = 44000 {cm}^{2}.$




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