Question

How can you decompose the composite figure to determine its area?

Answer 1

Answer:

It is D.

Step-by-step explanation:

From the top down we can split it into:

1 semicircle

1 trapezoid

2 rectangles.

Answer 2

Answer: D) As a semicircle, a trapezoid, and two rectangles.

Step-by-step explanation:

In order to find the area of the composite figure provided, it is necessary to descompose it.

Observe the image attached.

You can observe that it can descomposed as:

1- A semicircle, whose area can be calculated with this formula:

$A=\frac{\pi r^2}{2}$

Where r is the radius.

2- A trapezoid,  whose area can be calculated with this formula:

$A=\frac{h}{2}(B+b)$

Where h is the height, B is the larger base and b is the minor base.

3- Rectangle.

4- Rectangle.

The formula for calculate the area of a rectangle is:

$A=lw$

Where l is the lenght and w is the width.