Question

Given circle Q with a measure of SR=120° and a radius of 9 feet, as shown below.

Determine the arc length of SR. Use mathematics to explain how you determined your answer❤️

Answer 1

The arc length of the entire circle would be 2*PI*9

We need to know the arc length of 1/3 of the circle so we calculate

arc length = (2 * PI * 9) / 3

arc length = 2 * PI * 3

arc length = 6 * PI

arc length = 18.8495559215

Explanation: