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find the circumference of a circle if the area is 81pi m^2 use 3..14 for pi and round your answer to the nearest tenth
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find the circumference of a circle if the area is 81pi m^2 use 3..14 for pi and round your answer to the nearest tenth

User BBR
by
4.2k points

2 Answers

3 votes

Answer:

9 cm.

Explanation:

We are given that the area of a circle is 81π cm2. 81 π c m 2 . Hence the radius of the given circle is 9 cm.

User Zbyl
by
4.5k points
4 votes

Answer: C=2πr

Explanation:

User Mostlyharmless
by
3.8k points
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