February 19, 2017

Homework Help: math

Posted by Anonymous on Sunday, June 3, 2012 at 7:01pm.

A glass in the form of a frustum of a cone is represented by the diagram below. The glass contains water to height of 9 cm. The bottom of the glass is circle of radius 2cm while the surface of the water is a circle of radius 6 cm.

(a) Calculate the volume of the water in the glass.
(b) When spherical marble is submerged into the water in the glass, the water level rises by 1 cm. calculate:
(i) The volume of the marble
(ii) The radius of the marble.

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