in a temple there are 15 cylindrical pillars the diameter of each pillar is 14 cm and height is 3 m and find the cost of painting each a pillar at the rate of ₹5 per metre
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diameter= 14cm
radius= 14/2 = 7cm = 7/100 = 0.07m
height= 3m
CSA of 15 pillars = 15×2πrh
= 15×2×(22/7)×(0.07)×3
= (90×22)/100
= 1980/100 m³
= 19.8 m³
Cost@5/m² = 19.8× Rs5
= rs 99
HOPE IT HELPS!
radius= 14/2 = 7cm = 7/100 = 0.07m
height= 3m
CSA of 15 pillars = 15×2πrh
= 15×2×(22/7)×(0.07)×3
= (90×22)/100
= 1980/100 m³
= 19.8 m³
Cost@5/m² = 19.8× Rs5
= rs 99
HOPE IT HELPS!
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