50.6k views
1 vote
An earthquake was felt throughout a circular area of 1808.64 Square miles what was the radius of the circular area

A.24 miles
B. 12 miles
c. 20 miles
d. 576 miles

2 Answers

2 votes

Answer:

I agree 24 miles

Explanation:

the person above is correct

User STF
by
6.4k points
3 votes

Answer:

A

Explanation:

The area of a circle is given by the formula:


A=\pi r^2

Where A is the area and r is the radius.

Since we already know the area, we can plug it in and solve for r. Thus:


1808.64=\pi r^2\\

Divide both sides by π. We can use 3.14 as an approximation. The πs on the right cancel out:


1808.64/(3.14)=r^2\\r^2=576

Take the square root of each side:


√(r^2)=√(576)

The squares on the left cancel. The root of 576 is 24:


r=24

Therefore, the radius is 24.

User Webpapaya
by
7.0k points
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