(Solved): Find the area of the semicircle and the sector shown to the right. Leave your answers in terms of . ...

Find the area of the semicircle and the sector shown to the right. Leave your answers in terms of . 7 cm 40 cm a. The area is (Use integers or fractions for any numbers in the expression. Type an exact answer in terms of t.) b. The area is (Use integers or fractions for any numbers in the expression. Type an exact answer in terms of *.) a. b. 80 cm 0