Question

The area of a circle is 49 pi cm^2 what is the radius of a circle

Answer 1

radius = 7 cm

Explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

given A = 49π , then

πr² = 49π ( divide both sides by π )

r² = 49 ( take square root of both sides )

r =
`√(49)` = 7

Answer 2

The radius is 7 cm

Explanation:

We know the area of a circle is given by

A = pi r^2

49 pi = pi r^2

Divide each side by pi

49 = r^2

Take the square root of each side

sqrt(49) = sqrt(r^2)

7 = r

The radius is 7 cm