Question

In a building there are 24 cylindrical pillars the radius of each pillar is 28 cm and height is 4 m find the total cost of painting the curved surface area of all pillar at the cost Rs 8 per m^2

Answer 1

$r = 28cm = 0.28m \\ h = 4m \\ csa = 2\pi \times r \times h \\ = 2 \times \frac{22}{7} \times 0.28 \times 4 \\ = 70.4 {m}^{2} \\ csa \: of \: 24 \: pillars = 70.4 \times 24 \\ = 1689.6 {m}^{2} \\ cost = 1689.6 \times 8 \\ = 13516.8$

Answer 2

$\huge\bf{Answer:-}$

Yes

Explanation

Refer the attachment.