Question

II. Using Radians to Measure Arcs and Angles

A. Convert each radian measure to degrees
2."
4. 18
B. Convert each degree measure to radians
1. 100°
3. 30°
5. 10
C. Determine each arc length
Carnegie Learning, Inc.
1. The radius of a circle is 1 centimeter. What is
the length of an arc intercepted by an angle
of radians?
2. The radius of a circle is 4 inches. What is
the length of an arc intercepted by an angle
of radians?
4 in.
1 cm

Answer 1

Pi radians is 180 degrees.
A
1) 180/3=60
2) 270
3) 45
4) 3240
B
1) 100/180=5/9
3) 30/180=3/18
5) 1/180
C
1) (pi) cm
2) 2pi