For each circle below, what are the arc length and the area of the shaded sector? Write your answers in terms of π. Homework Help ✎
a. m∠AOB = 120°
b. CD = 6 in
arc length = (fraction of circle)(circumference of circle)
sector area = (fraction of circle)(area of circle)
Use the same two methods as part (a). What is the radius of this circle?