The inner diameter of a circular well is 7 meter and it is 10 meter deep. Its inner curved surface area is(trisha)
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Ex 13.2, 7 The inner diameter of a circular well is 3.5 m. It is 10 m deep. Find (i) Its inner curved surface area, (ii) The cost of plastering this curved ...
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Step-by-step explanation:
Inner radius (r) of circular well = (7/2)m
= 3.5m
Depth (h) of circular well = 10m
Inner curved surface area = 2πrh
=( 2×22/7×3.5×10 ) m square
= (2×22/7×35/10×10)m square
=(2×22/7×350/10) m square
=(2×22/7×35) m square
= (2×22×5) m square
Inner curved surface area = 220 m square
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