Question

describe how you would determine the area of this composite figure. the curve is a semicircle.
a) add the area of the triangle to the area of the rectangle and subtract the area of the semicircle.
b) add the area of the triangle to the area of the semicircle and subtract the area of the rectangle.
c) add the area of the rectangle to the area of the semicircle and subtract the area of the triangle.
d) add the areas of the rectangle, triangle, and semicircle.

Explanation:

Step1: Identify component shapes

The composite figure is made of a semi - circle, a rectangle and a triangle.

Step2: Recall area - finding principle

To find the area of a composite figure, we find the area of each individual shape and sum them up.

Answer:

d) Add the areas of the rectangle, triangle, and semi - circle.