10. The rain falls 10cm on a particular day. The rain
water that falls on a roof 70 m long and 44 m
wide was collected in a cylindrical tank of radius
14 m.
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Step-by-step explanation:
Volume of rain water = volume of cylindrical tank filled
Let the rise in water level of cylindrical tank be 'h' cm
10*70*44 = pi*14^2*h
h = 10*70*44*7/22*14*14
= 10*10*2/2*2
= 10*5
= 50 cm
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