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Galina-37 [17]
3 years ago
5

A square with an area of 81 cm^2 is rotated to form a cylinder. What is the height of the cylinder?

Mathematics
1 answer:
UkoKoshka [18]3 years ago
7 0
The area of a square is just:

A=s^2 so

s^2=81

s=9  so if this square is rotated about its center you will get a cylinder with a radius of 4.5 cm and a height of 9 cm.

So the height is 9 cm
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