 )7). (2 points) [Extra credit] Find the area of this quarter circle: (a quarter-circle is 1/4 of a circle)  Area = __________ 8). (2 points) [Extra credit]Find the area of the shaded part of this figure. (the inside figure is a circle. Find the circle's radius)  Area = __________ 9). (2 points) [Extra credit] Find the area of this figure. The right end is a half-circle. (Hint: Find the radius of the circle first)  Area = __________ |