Rain water which falls on a flat rectangular surface of length 6 m and breadth 4m
is transferred into cylindrical vessel of internal radius 20 cm. What will be the height of water in the cylindrical vessel if the rain fall is 1 cm. Give your answer to the nearest integer.
(b) if the radius of a sphere is increased by 10%. Prove that the volume will be increased by 33.1% approximately.
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Answer:
L×B×H=πr
2
h
6×4×0.01=π0.2
2
h
h=1.9098m=190.98cm
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