A hemispherical dome of a building needs to be painted. if the circumference of the base of the dome is 17.6 m, find the cost of painting it, given the cost of painting is ₹ 5 per 100 m2 PLZ ANSWER URGENT PLZ
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Answer:
Rs. 2.464
Step-by-step explanation:
circumference of base of dome = 2πr = 17.6 m
r = 17.6*7/22*1/2 = 2.8
area of hemisphere = 2πr^2
2πr*r
17.6*2.8= 49.28 sqm
100 sqm = Rs. 5
1 sqm = 5/100
cost = 49.28*5/100
Rs.2.464
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