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ICSE Class 10 Answered

A circular hall has a hemispherical roof. The greatest height is equal to the inner diameter. Find the area of the floor,given capacity of then hall is 48510 cube m.
Asked by jaiswalsindhuli717 | 28 Oct, 2018, 02:15: PM
answered-by-expert Expert Answer

V = (2 / 3) π r3.

r3=48510x3x7/22x2

r=cube root (23152.5)

r=28.50 m

Area of the floor ( a circular floor)=π r2

                                                               = 3.14159*28.50*28.50

                                                               = 2551.76 sq.m.

 

Answered by Arun | 28 Oct, 2018, 04:26: PM

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