Given that is a rectangle whose length is cm and width is
cm, and a circle is drawn to touch the sides and , calculate the area of the shaded part approximated to the nearest tenth, where .
Step 1: Determine the area of the circle.
Since the circle touches parallel sides and , we know that the circle's diameter must be equal to the length of perpendicular side : cm.
Use the formula for the area of a circle.
Step 2: Determine the area of the shaded part.
Subtract the area of the circle from the area of the rectangle.