Big Ideas Geometry Chapter 8

A circular swimming pool is 21 feet in diameter.
How many feet around is the pool?

• 10.5 ft
• 42 ft
• 65.94 ft
• 131.95 ft

Find the area of the circle with radius 3 cm below.

• 100 cm²
• 18.84 cm²
• 9.42 cm²
• 28.26 cm²

Find the area of the composite figure

• 40
• 9
• 49
• 61

Find the area of the shape

• 16.56 sq in
• 7.14 sq in
• 10.28 sq in

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

• 284.52 ft2

• 228 ft2

• 317 ft2

• 116.71 ft2

Find the area of the circle

• 37.68 ft²

• 18.84 ft²

• 113.04 ft²

• 9.42 ft²

_{Find the perimeter}

• 20

• 18

• 22

• 16

Find the perimeter of the figure.

• 86 yd.
• 32 yd.
• 33 yd.
• 53 yd.

Find the perimeter.  Use 3.14 for π.

• 40.26 in
• 36.13 in
• 50.26 in
• 78.52 in

 What is the area of the arrow?

• 17 in2
• 40 in2
• 52 in2
• 61 in2