185k views
4 votes
The circumference of circle x in which a = 49pi in squared

User Justine
by
6.6k points

1 Answer

6 votes

Answer:

C = 14 pi inches

Explanation:

The area of a circle is given by

A = pi r^2

49 pi = pi r^2

Divide each side by pi

49 pi/pi = pi /pi r^2

49 = r^2

Take the square root of each side

7 = r

The circumference is given by

C = 2 * pi *r

C = 2 * pi *7

C = 14 pi inches

User Steve V
by
6.1k points