Compound Figures with Circles

Jeff drew a circle inside a square, as shown below.  Which method can Jeff use to find the area of the square not covered by the circle?

What is the radius?

What is the circumference?

What is the diameter?

The radius of the larger circle is 5 meters and the radius of the smaller circle is 2.5 meters. What is the approximate area of the shaded region?

Diagram shows a rectangle TUVW. A circle with centre 0 with circumference 44 cm is in the rectangle. If the length of the rectangle is twice its width, find the area, in $$cm^2$$ , of the shaded region. (Use $$\pi=3.142$$  )

For the school fair, Helen paints a large bullseye for the beanbag toss. The radius of the innermost circle is 6 inches. The diameter of the middle circle is 2 feet. The diameter of the largest circle is 6 feet. Helen paints the shaded region of the bullseye. How many square feet does Helen paint? Use π≈3.14

What is the area of the figure to the nearest square centimeter (whole number)?

Solve.

What is the diameter?