


EXERCISES 
You
will need 





Construction
tools
for Exercise
16 



In
Exercises 1−8, find the area of the shaded region. The radius
of each circle is r. If two circles are shown, r is
the radius of the smaller circle and R is the radius of the
larger circle. 










13. 
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 ft^{2} of pizza, how many cans
would you need to cover this slice? 









