Question

Along of wood in the shape of cylinder has length of 2 metre and diameter 70 cm find the volume of wood in the log

Answer 1

Given,

length of the cylinder = 2 metre = 200cm

diameter = 70 cm

radius = 70/2

= 35

Volume of cylinder = πr^2h

$= \frac{22}{7} \times {35}^{2} \times 200 \\ \\ = \frac{22}{7} \times 35 \times 35 \times 200 \\ \\ = 22 \times 5 \times 35 \times 200 \\ \\ = 110 \times 70 \\ \\ = 770000 {cm}^{3}$

Therefore, the volume of wood cylinder = 770000 cm^3

Answer 2

Solution :-

Given :

Height of Cylinder = 2 m

Diameter = 70 cm

To Find :

Volume of Cylinder = ?

Explanation :

Radius = 70 / 2 = 35 cm

Height = 2 × 100 cm = 200 cm

$\sf Volume \: of Cylinder = \pi r^2 h \\ \ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \sf \frac{22}{7} \times 35 \times 35 \times 200 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \sf 22 \times 5 \times 35 \times 200 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \sf 770000 \: {cm}^{3}$