Question

A cylinder has radius 7 cm and height 14 cm. Find its
lateral surface area and total surface area.

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Answer 1

radius = 7cm

height = 14 cm

lateral surface area = 2πrl = 2× 3.14 × 14

= 87.92 cm^2 approx

total surface area = 2πr(h+r) = 2× 3.14(14+7) = 131.88 cm^2 approx

hope this may help you please mark brainliest answer

Answer 2

$<b><i><u>$

Hello Chika

$\huge \mathfrak{'SOLUTION'}$

Given,

r = 7cm

h = 14cm

We know that -

L.S.A of cylinder = 2πrh

So,

$L.S.A = 2 \times 22 \div 7 \times 7 \times 14 \\ = 616cm {}^{2}$

and

T.S.A of cylinder = 2πr(h+r)

So,

$T.S.A = 2 \times 22 \div 7 \times 7(14 + 7) \\ = 2 \times 22 \div 7 \times 7 \times 21 \\ = 2 \times 22 \times 21 \\ = 924cm {}^{2}$

Hope it helps :)