Question 1188290
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A glass of water 12 cm high, with a circumference of 6π cm, is 1/2 full. 
A metal sphere of radius 3 cm is dropped into the glass (it just fits). 
What is the increase in the height of the water in the glass, in cm? 
A) 3.5 B) 4 C) 4.5 D) 5 E) 5.5
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Take the volume of the sphere,  {{{(4/3)*pi*3^3}}},  and divide it by the area of the glass bottom, {{{pi*3^2}}}.


The ratio, which you get, will be your answer:  {{{(4/3)*3}}} = 4 centimeters.
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Solved and explained.