Question

A composite figure is comprise of a semicircle, a hexagon, and a rectangle.
How can you decompose the composite figure to determine its area?

as a circle, two trapezoids, and a rectangle
as a semicircle, a pentagon, and two triangles
as a semicircle, a hexagon, and a rectangle
as a circle, six triangles, and a rectangl

Answer 1

Correct choice: "as a semicircle, a hexagon, and a rectangle."

Reason: the composite figure is already made up of those three pieces, so decompose it into those parts and sum their areas. (If needed for calculation, you can further break the hexagon into triangles or trapezoids, but you should not convert the semicircle into a full circle.)