Question

Find the volume of a cylinder whose height is 42 m and base(radius)= 10 m.

Answer 1

Step-by-step explanation:

volume of cylinder= πr^2h

= 3.14 x 10 x 10 x 42

= 314/100 x 100 x 42

= 314 x 42

= 13188 sq.m

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Answer 2

Before, finding the answer. Let's find out, on how we can find the answer.

• To find the Volume of the Cylinder, we must use the formula of :

$\boxed{\sf Volume \: of \: Cylinder = \pi r^2 h}$

Where,

π = $\sf \dfrac{22}{7}$

• Here, we have to multiply π, value of radius into radius and height.

________________________

Given :

• Height = 42 m
• Radius = 10 m

To find :

• Volume of a cylinder

Solution :

We know that,

${\sf Volume \: of \: Cylinder = \pi r^2 h}$

                            ${\sf = \dfrac{22}{7} \times 10^2 \times 42}$

                            ${\sf = \dfrac{22}{7} \times 100 \times 42}$  

                            ${\sf = \dfrac{22}{7} \times4200}$

                            ${\sf = \dfrac{22 \times4200 }{7}}$

                            ${\sf = \dfrac{92400}{7}}$

                            = 13200 m³

∴ Volume of Cylinder is 13200 m³.