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7 votes
The area of a circle is 42.71m2.

Find the length of the diameter rounded to 1 DP.
PLEASE IM BEGGING ANSWER THIS ASAP

2 Answers

12 votes

Answer:

7.4 meters

Explanation:

Solve for the radius:


A=\pi r^2


42.71=\pi r^2


(42.71)/(\pi)=r^2


\sqrt{(42.71)/(\pi)}=r

Solve for the diameter:


d=2r


d=2\sqrt{(42.71)/(\pi)}


d\approx7.4

Therefore, the diameter of the circle is about 7.4 meters

User Wormhit
by
4.6k points
11 votes

Answer:

d=7.4

d= =square 1.

Explanation:

User Ungalcrys
by
4.7k points