What is the approximate circumference of a circle that has a radius of 90? Use 3.14 and express your answer to the tenths place?

The approximate circumference of a circle can be calculated using the formula C = 2πr, where r is the radius of the circle.

C = 2 * 3.14 * 90
C = 565.2

So, the approximate circumference of a circle with a radius of 90 is 565.2.