Question

Find the surface area of a cylinder given that its radius is 15 cm and height 35 cm.​

Answer 1

Given :-

Radius => 15 cm

Height => 35 cm

To Find :-

Surface area of Cylinder :-

Formula Used Here :-

Surface area of Cylinder => 2πr (r+h)

Solution Start :-

$Surface \: area \: of \: Cylinder => 2πr (r+h) \\ \\ Surface \: area \: of \: Cylinder = > 2 \times \frac{22}{7} \times 15(15 + 35) \\ \\ Surface \: area \: of \: Cylinder => \frac{44}{7} \times 15(50) \\ \\ Surface \: area \: of \: Cylinder => \frac{44}{7} \times 750 \\ \\ Surface \: area \: of \: Cylinder => \: \frac{33000}{7} \\ \\ Surface \: area \: of \: Cylinder => approx \: 4717.28 \: {cm}^{2}$

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Answer 2

Ans

volume of cylinder = πr2h

=22/7×15×15

4950×35

173250÷7

= 24750cm2