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A cylindrical tub of radius 12 cm contains water to a depth of 20 cm. A spherical ball is dropped into the tub raising the level of water by 6.75 cm. What

is the radius of the ball? plz explain


Radius is 2.1477272727.first find area of tub. then subtract water depth from tub. then rising of water is area of ball .find it using the formula area of circle.
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actually i have also tried it sometime and got the answer to be 9 cms.
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