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crater lake in Oregon is shaped like a circle with a diameter of 5.5 miles.
a) how far is it around the perimeter of crater lake?
b)what is the area of the surface of crater lake?
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Answer:
The perimeter of a circle is calculated with 2πr
The r stands for radius. The radius is half of the diameter.
So r=2.25
Plug it in 2π(2.25)
It was simplify to 4.5π
Which would simplify down to 14.14 miles rounding to the nearest hundread
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