Question

A composite figure is comprised of a semicircle, trapezoid, and 2 rectangles.
How can you decompose the composite figure to determine its area?

as a circle, three rectangles, and a triangle
as a circle, a trapezoid, and four triangles
as a semicircle, three rectangles, and a square
as a semicircle, a trapezoid, and two rectangles

Answer 1

Answer: as a semicircle, a trapezoid, and two rectangles.

Reason: the composite figure is already made of those parts, so its area is the sum of their areas:
A = A_semicircle + A_trapezoid + A_rectangle1 + A_rectangle2.