Answer:

Explanation:
The area of the rectangle can be calculated with the following formula:

Where "l" is the length and "w" is the width.
In this case:

Then, substituting values into the formula, you get that the area of the rectangle shown in the figure is:

The formula that is used to find the area of a circle is:

Where "r" is the radius of the circle.
In this case you know that:

Then, the area of the given circle is:

Subtract both areas in order to find the area of the shaded region. Rounded to the nearest hundredth, this is:
