February 24, 2017

Homework Help: Geometry

Posted by Mary on Wednesday, May 25, 2011 at 8:59am.

A wooden cylinder with a diameter of 10 centimeters and a height of 20 centimeters rests on its circular base. It is cut in half horizontally. What is the difference between the combined surface areas of the two newly created cylinders and the total surface area of the original cylinder?
These are my choices:
a. 100rr sq cm
b. 50rr sq cm
c. 25rr sq cm
d. 0 sq cm

I came up with 100rr sq cm??

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