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Which has a larger area a circle with a radius of 2 or circle with a circumference of 12?​

User Niedved
by
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1 Answer

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Answer:

Circle 1

Explanation:


A=\pi r^2


C=2\pi r

Circle 1 area:


A=\pi (2)^2=4\pi

Circle 2, plugin circumference to find radius:


12=2\pi r

Solve for r:


(6)/(\pi ) =r

Circle 2 area:


A=\pi ((6)/(\pi ) )^2=\pi ((36)/(\pi ^2))=(36)/(\pi )

Therefore, circle 1 has a greater area.

User Hubert Kario
by
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