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Mathematics 9 Online
OpenStudy (anonymous):

A spherical ball is immersed in water contained in a vertical cylinder. The rise in water level is measured in order to calculate the radius of the ball.Calculate the radius of the ball in the following cases: (a): cylinder of radius 10cm, water level rises 4cm. (b): cylinder of radius 100cm, water level rises 8cm

OpenStudy (anonymous):

I solved (a) and its 6.69 cm but I used the exact method for (b) and I got another answer than the book.

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