21. A Figure is shown below.
What is the area of the figure, in square inches?

Step-by-step explanation:

The figure consists of a square and a sector. We can add the areas of the square and sector to get the total area of the figure.

The area of a sector with measure in a circle of radius is equal to . Since there are 360 degrees in a circle and 90 degrees in each corner of a square, the measure of the sector is .

Thus, its area is:

.

The area of a square with side length is given by . Therefore, the area of the circle is and the total area of the figure is

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