Circumference and Area of Complex Figures

The diagram shows the spot on a basketball court called the “key”. What is the area of the key? Use 3.14 for ∏ .

• 284.52 ft2

• 228 ft2

• 317 ft2

• 116.71 ft2

What is the perimeter of the following figure? (round your answer to the nearest hundredth)

• 73.70 ft

• 54.85 ft

• 37.70 ft

• 18.85 ft

Find the area of the composite figure.

• 100

• 400

• 137.5

• 175

A semicircle opening above the entrance at Six Flags has a diameter of 15 feet.  What is the area of this opening?  Round to the nearest tenth.

• 706.5 square feet

• 47.1 square feet

• 88.3 square feet

• 176.6 square feet

Solve the area for the shaded region:

• 200.96ft²

• 64 ft²

• 50.24 ft²

• 13.76 ft²

The diagram shows the spot on a basketball court called the “key”. What is the area of the key? Use 3.14 for ∏ .

• 284.52 ft2

• 228 ft2

• 317 ft2

• 116.71 ft2

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?

• 5 squared meters

• 20 squared meters

• 59 squared meters

• 79 squared meters

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

A school’s art teacher designs a circular flower bed inside a rectangular sandbox. The sandbox is 6 feet wide and 10 feet long.
How many square feet will there be for sand after the flower bed is installed? Use 3.14 for π.

• 22 square feet

• 28 square feet

• 32 square feet

• 41 square feet