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 Form 2 Mathematics Topical Questions and Answers on Similarity and Congruence

A glass in form of a frustum of a cone, is represented by the diagram below. The glass contains water to a height of 9cm. the bottom of the glass is a circle of radius 2 cm while the surface of the water is a circle of the radius 6 cm. (a). calculate the volume of the water in the glass (b). when a spherical marble is sub-merged into the water in the glass, water level rises by 1 cm. calculate:
i). the volume of the marble
ii). The radius of the marble.

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