Find the exact circumference of a circle with an area equal to 36 sq. in.

The area of the circle is determined through the equation,

A = πr²

Plug in the value of area

36 in² = πr²; r = 3.385 in

The formula for the circumference of the circle is,

C = 2πr

Substitute the value of radius,

C = 2π (3.385 in) = 6.77π in

Thus, the circumference of the circle is 6.77π inches.