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Find the cost of painting at the rate of...

Find the cost of painting at the rate of `Rs. 5.60 per m^(2)` on the hemispherical dome of diameter 10 m.

Text Solution

Verified by Experts

Radius of hemispherical dome `r = (10)/(2)=5 m`
`therefore` Curved surface `= 2pi r^(2)`
`=2xx(22)/(7)xx5xx5=(1100)/(7)m^(2)`
Cost of painting `= Rs. 5.60xx(1100)/(7)= Rs. 880`
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