A circular hall(big room) has a hemispherical roof.The greatest height is equal to the inner diameter.Find the area of the floor,given that the capacity of the hall is 48510 cubic meter
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let the inner diameter = D
inner radius = D/2 = r
Greatest height = D
height of cylindrical part (h)= D-r = r
radius of cylindrical part = r
area of floor = πr²
volume = volume of cylindrical part + volume of hemispherical part
= πr²h + 2/3 πr³
= πr³ + 2/3 πr³
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inner radius = D/2 = r
Greatest height = D
height of cylindrical part (h)= D-r = r
radius of cylindrical part = r
area of floor = πr²
volume = volume of cylindrical part + volume of hemispherical part
= πr²h + 2/3 πr³
= πr³ + 2/3 πr³
⇒
⇒
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Step-by-step explanation:
here is ur answer
with step by step
is it understandable
area of floor = 1386m²
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