How do I go about solving the first part of this problem (part a)

12. [3/5 Points] DETAILS PREVIOUS ANSWERS MY NOTES Start with a circle of radius r=15. Form the two shaded regions pictured below: c(0) has an arc and two straight line sides and t(0) is a right triangle. Note that the areas of these two regions will be functions of 0; r is fixed in the problem. (a) Find a formula for Area(c(0))= -(15 - 15 cos(0) . sin (0) ) x (b) Area(t(0)) = (15 - 15 cos(0)) . 15 sin (0) lim Area (c (0)) = 0 (d) lim Area (t (0)) = 0 (e) 640 [Area(c(0))/Area(t(0))]= Submit Answer Viewing Saved Work Revert to Last Response