Start with a circle of radius r=4. form the two shaded regions pictured below: c(θ) has an arc and two straight line sides and t(θ) is a right triangle. note that the areas of these two regions will be functions of θ; r is fixed in the problem. (a) find a formula for area(c(θ))= 1 2r2sin(θ)(1−cos(θ)) . (b) area(t(θ))= . (c) = 0 . (d) = 0 . (e) [area(c(θ))/area(t(θ))]= .