Introduction to Circles Answers

Use the formula for radian measure to calculate the measure of a central angle in a circle having a radius of 12 cm and intercepting an arc of 21 cm.The angle has a measure of radians.

Use the circle.What is the radian measure for the angle to the nearest hundredth? Use 3.14 for .

Given a radius of 9 inches, estimate the length of arc s to the nearest hundredth. inches