Answer:
A is the first step
Step-by-step explanation:
The complement of an angle is
angle+complement=90 degrees
angle+supplement=180
so if angle+22=90
subtract 22
angle=68
supplement=
68+supplement=180
subtract 68
supplement=112
Answer:
57.06 unit^2
Step-by-step explanation:
find the area of the rectangle = 12*12 = 144 unit^2
the area of the circle = pi*r^2 = 3.14*8^2 = 201.06 unit^2 (rounded to the nearest hundredth)
then the "shaded area" is the difference
201.06 - 144 = 57.06 unit^2
