What is the area of this trapezoid 18 20 24 60

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

3x = 729 solve for x plz . it's urgent. will mark