Question

► Find the surface area of cylinder whose base diameter is 5cm
and height is 30cm.(pi=22/7)​

Answer 1

Here,

Diameter = 5cm so, radius = 5/2 = 2.5

Height = 30 cm

Surface area of a cyclinder = 2πr(r+h)

= 2 × 22/7 × 2.5 ( 30 + 2.5 )

= 5 × 22/7 × 32.5

= 510.71 cm²

Answer 2

510.71 cm^2

Solution,

`diameter = 5 \: cm \\ height = 30 \: cm \\ surface \: area \: of \: cylinder \\ = 2\pi \: r(h + r) \\ = 2 * (22)/(7) * 2.5(30 + 2.5) \\ = 5 * (22)/(7) * 32.5 \\ = 510.71 \: {cm}^(2)`

hope this helps...

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