Question

Find the area of the given composite figure.

• A. $20$ square units
• B. $21$ square units
• C. $22$ square units

Answer 1

The correct option is B $21$ square units


Break down the given composite figure into simple and familiar shapes.
This can be broken down into three rectangles.

Area of a rectangle
$=$ length $\times$ breadth

Area of first rectangle
$=4\times 2=8$ square units

Area of second rectangle
$=3\times 1=3$ square units

Area of third rectangle
$=5\times 2=10$ square units

Area of the composite figure will be the sum of all three rectangles.

$=8+3+10$
$=21$ square units