Mathematics: If the area of a circle is 58 square feet, find the circumference. a. 42.5 ft. b. 4.25 ft. c. 22.35 ft. d. 26.99 ft.

If the area of a circle is 58 square feet, find the

nolangriffin

15.01.2022

OPTION D.

Step-by-step explanation:

The formula for calculate the circumference of a circle is:

$C=2r\pi$

Where r is the radius.

The formula for calculate the area of a circle is:

$A=r^2\pi$

Where r is the radius.

Solve for r from $A=r^2\pi$ to calculate it:

$r=\sqrt{\frac{A}{\pi}}\\r=\sqrt{\frac{58ft^2}{\pi}}\\r=4.296ft$

Subsitute the radius into $C=2r\pi$ . Then:

$C=(2)(4.296ft)\pi=26.99ft$

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