Question

find the total surface area of cylinder?height=12cm,radius=35cm

Answer 1

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T.S.A of a cylinder = 2πr(h+r)

=2 × 22/7 × 35 ( 12+35 )

= 22 × 10 (47)

= 10340cm^2

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Answer 2

$tsa = 2\pi \times r(r + h) \\ = 2 \times \frac{22}{7} \times 35 \times (35 + 12) \\ = 220 \times 47 = 10340 {cm}^{2}$