In a building there are 24 cylindrical pillars. the radius of each pillar is 28 cm and heights is 4 m . find the total cost of painting the curved surface area of all Pillars at the rate of rupees 8 per meter square ?

In a building there are 24 cylindrical pillars. the radius of each pil

1.	In a building there are 24 cylindrical pillars. the radius of each pillar is 28 cm and heights is 4 m . find the total cost of painting the curved surface area of all Pillars at the rate of rupees 8 per meter square ?
Answer» Rs 1351.68Explanation:Radius of cylindrical pillar, r = 28 cm = 0.28 m HEIGHT, h = 4 m CURVED surface area of a cylinder = 2πrh curved surface area of a pillar =2 × 22/7 × 0.28 × 4=7.04 m2 curved surface area of 24 such pillar = 7.04 × 24 = 168.96 m2 cost of painting an area of 1 m2 = Rs 8 Therefore, cost of painting 1689.6 m2 = 168.96 × 8 = Rs 1351.68.HOPE THAT WAS HELPFUL! PLEASE CLICK ON THANKS AND MARK AS BRAINLIEST!