B. 565.2 cm
The formula for calculating the circumference of a circle is C = 2πr, where r is the radius of the circle. Given that the radius is 90 cm, plugging this into the formula we get:
C = 2 * 3.14 * 90
C = 565.2 cm
Therefore, the approximate circumference of a circle with a radius of 90 cm is 565.2 cm.
What is the approximate circumference of a circle that has a radius of 90 cm? Use 3.14 for PI and express your answer to the tenths place.
A. 180 cm
B. 282.6 cm
C. 565.2 cm
D. 4,050 cm
1 answer