Suppose an angle has a measure of 115 degrees.
a. If a circle is centered at the vertex of the angle, then the arc subtended by the angle's rays is 115.02 times as long as 1/360th of the circumference of the circle.
b. A circle is centered at the vertex of the angle, and 1/360th of the circumference is 0.02 cm long. What is the length of the arc subtended by the angle's rays?
252.7 cm
c. Another circle is centered at the vertex of the angle. The arc subtended by the angle's rays is 69 cm long.
* 1/360th of the circumference of the circle is 0.59 cm long.
Hint: The arc subtended by the angle's rays is how many times long as 1/360th of the circumference of the circle? Use this to help you determine this answer.
* Therefore the circumference of the circle is cm.