Unit 11 Study Guide

A 3-foot wide sidewalk surrounds a rectangular flower bed. The flower bed is 7 feet wide and 11 feet long.

What is the area of the sidewalk?

• 144 square feet

• 72 square feet

• 77 square feet

• 12 square feet

Consider the irregular figure above.

What is the area of the figure?

• $60\ cm^2$

• $144\ cm^2$

• $136\ cm^2$

• $90\ cm^2$

The figure is a diagram of a wall.  Lengths are given in feet.

Part A:   How many square feet of wallpaper would be needed to cover the wall?  Explain your reasoning.

•  $75\ ft^2$  

•  $90\ ft^2$  

•  $108\ ft^2$  

•  $60\ ft^2$  

The figure is a diagram of a wall. Lengths are given in feet.

Part B: Wallpaper is sold in rolls that cover 25 square feet and each roll costs $18.50. What is the cost of the wallpaper you would need to cover the wall?

• $37.00

• $55.50

• $18.50

• $21.00

Which parallelogram has an area of 120 square units?

• 
• 
• 
• 

Which parallelogram has an area of 15 square units?

• A

• B

• C

• D

The base of a building is shaped like a parallelogram. The first floor has an area of 10,000 square feet. If the base of this parallelogram is 250 feet, can its height be 40 feet?

• Yes

• No

Find the area of a parallelogram with a base of 9 cm and a height of 9 cm.

• 72 square cm

• 18 square cm

• 81 square cm

• 9 square cm

Find the area of a triangle that has a base of 21.5 feet and a height of 16 feet.

• 136

• 144

• 116

• 172

This diagram shows one side of a storage barn.

Part A: This side of the barn needs to be painted. Find the total area to be painted.

• 467.4 sq feet

• 267.5 sq feet

• 356.2 sq feet

• 330.7 sq feet