9.1+Perimeter+and+Circumference

Section 9.1 - Perimeter and Circumference
Perimeter is the distance around the outside of the object. If the object is a circle, it is known as the circumference, but it is still the distance around the outside.

If the shape uses straight lines - no matter how many lines - to enclose the object, just add up the sides.



For circumference, the formula is: Circumference = 2(pi)(radius)



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 * Chapter Nine Practice Problems**

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9.1 Perimeter and Circumference 9.2 Area 9.3 Volume Chapter Nine Summary Chapter Nine Homework