What is the approximate circumference of a circle that has a radius of 90° use 3.14 for pi and express your answer to the tenths place
The circumference of a circle can be calculated using the formula C = 2πr, where r is the radius.
C = 2 × 3.14 × 90
C = 565.2
Therefore, the approximate circumference of the circle with a radius of 90° is 565.2 units.