© 2013 Kendall Hunt Publishing
LESSON  8.6 Any Way You Slice It 455 EXERCISES In Exercises 1–8, find the area of the shaded region. The radius of each circle is r. If two circles are shown, is the radius of the smaller circle and is the radius of the larger circle. 1.  r = 6 cm 2.  r = 8 cm 3.  r = 16 cm 4.  r = 2 cm 5.  r = 8 cm 6.  R = 7 cm r = 4 cm 7.  r = 2 cm 8.  R = 12 cm 9.  The shaded area is 12    cm2. r = 9 cm Find r. 10.  The shaded area is 11.  The shaded area is 12.  The shaded area is 10    cm2. 32    cm2. Find r. 120    cm2, and the The radius of the large circle is radius is 24 cm. Find x. 10 cm, and the radius of the small circle is 8 cm. Find x. 13.  Application  Suppose the pizza slice in the photo at the beginning of this lesson is a sector with a 36° arc, and the pizza has a radius of 20 ft. If one can of tomato sauce will cover 3 ft2 of pizza, how many cans would you need to cover this slice? You will need