SOLUTION: Hello the question is im trying to solve is a physics. The question reads: by whathe t factors does tripling the radius of a circle increase the circumference and the area of a

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Question 833730: Hello the question is im trying to solve is a physics.
The question reads: by whathe t factors does tripling the radius of a circle increase the circumference and the area of a circle?
Thank you for your time.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Circumference, c=2%2Api%2Ar
C=2%2Api%2A%282r%29=2%282%2Api%2Ar%29
C=2%2Ac

Area, a=pi%5Er%5E2
A=pi%282%2Ar%29%5E2=pi%2A4%2Ar%5E2=4%2Api%2Ar%5E2
A=4%2Aa