Question

The dome is in the shape of hemisphere with radius r, then the volume of the air inside is ?????????????????

Answer 1

Answer:

A dome of a building is in the form of a hemisphere. From inside, it was white-washed at the cost of Rs 498.96. If the cost of white washing is Rs 2.00 per square metre, find the inside surface area of the dome.

We know that,

Area whitewashed x Cost of white wash = Total cost

Area whitewashed x 2 = Rs 498.96

Area whitewashed = 498.96

Area whitewashed = 249.48 m2

Now,area whitewashed is

curved surface area of hemisphere (as only walls are

whitewashed, not floor)

Therefore,inner surface area of dome = 249.48 mm.

Answer 2

Answer:

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Step-by-step explanation:

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