Plane Geometry and Similarity Review

A circle has a diameter of 16 inches. Which formula represents how to find the area of the circle?

• A="16 ∙ π"

• A=π 16²

• A=π 8²

• A=16

Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use a scale in which 1 inch represents 25 feet. What is the height in inches of Troy’s drawing?

• 12.2 in

• 122 in

• 775 in

• 2.5 ft

The circumference of a tire is 96 inches. Determine the radius of the tire. Use 3 for π.

• 32 in

• 10.5 in

• 16 in

• 24 in

Mr. Hawkins is covering a wall with wallpaper. The room measures 14 feet by 12 feet in a rectangular shape. Each square foot of wallpaper costs $2.90. What is the cost of adding wallpaper to the room

• 168 ft²

• 84 ft²

• $48.72

• $487.20

Which of the following equations can be used to find the missing angle, x, in the triangle below?

• x + 84 = 180

• x + 84 = 360

• x + 42 = 90

• x + 42 = 180