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Assess Yourself

How well do you understand the ideas in this lesson?

Goal:

Goal:

measuring penguin.

Show What You Know!

Are you ready to take this lesson's quiz? These questions will help you find out. Go back to the lesson if you do not know an answer.

A parking lot has 4 sides and a perimeter of 178 meters. One of the sides is 21 meters long, one side is 65 meters, and one side is 32 meters. What is the length of the last side?

Shape: Side 1: 21 meters, Side 2: 65 meters, Side 3: 32 meters, Side 4: Question Mark, Side 5: Perimeter 178 meters.

  1. 60 m
  2. 50 m
  3. 95 m
  4. 55 m

A rectangular play mat has a length of 10 feet and a perimeter of 28 feet. What is the width of the play mat?

Rectangle: Side 1: Question Mark, Side 2: 10 feet, Side 3: Question Mark, Side 4: 10 Feet, Perimeter: 28 feet.

  1. 2 cm
  2. 6 cm
  3. 14 ft
  4. 4 ft

Madelyn's notebook is a perfect rectangle. Two of the sides are 7 inches long, and one of the sides is 15 inches. What is the length of the other side?

A notebook: Side 1: Question Mark, Side 2: 7 inches, Side 3: 15 inches, Side 4: 7 inches, Perimeter: 44 inches.

  1. 14 inches because \({7 + 7 = 14}\)
  2. 15 inches because the other side of the notebook is 15 inches also
  3. 29 in because \({7 + 7 + 15 = 29}\)
  4. 7 inches because the width of the notebook is 7 inches

Caleb's remote is a rectangle. The length is 20 centimeters, and the width is 6 centimeters. What is the perimeter of the remote?

Remote Control: Side 1: 6 centimeters, Side 2: 20 centimeters.

  1. 52 cm
  2. 6 cm
  3. 50 cm
  4. 26 cm

This is a rectangular computer screen. The width of the screen is 56 inches, and the length is 29 inches. Which statement below is TRUE?

A computer screen. Side 1: 29 inches, Side 2: 56 inches, Side 3: 29 inches, Side 4: 56 inches.

  1. The perimeter is the same number as the length.
  2. The lengths and widths of a rectangle are all the same number.
  3. The perimeter is 170 inches because \({56 + 56 + 29 + 29 = 170}\).
  4. You can find the perimeter by multiplying the length and the width of a rectangle.

Logan uses this hard drive to store his robot-design ideas. What is the perimeter of the hard drive?

Hard Drive. Length 17 centimeters, Width 9 centimeters.

  1. 99 cm
  2. 34 cm
  3. 52 cm
  4. 50 cm

Ava and her classmates spent math class measuring a poster on their classroom wall. They found the top of the poster is 63 centimeters long, the right side is 35 centimeters, and the left side is 35 centimeters. If the perimeter of the poster is 173 centimeters, what is the length of the bottom of the poster?

Trapezoid that is upside down. Side 1: 35 centimeters, Side 2: 63 centimeters, Side 3: 35 centimeters, Side 4: question mark. Perimeter 173 centimeters.

  1. 40 m
  2. 55 cm
  3. 173 cm
  4. 40 cm

Zoe's teal sticker has a unique shape. It has 8 sides and a perimeter of 41 inches! Two of the sides are 6 inches, two of the sides are 4 inches, two of the sides are 1 inch, and one side is 11 inches. What is the missing length of Zoe's sticker?

Shape: Side 1: 1 inch, Side 2: 4 inches, Side 3: 6 inches, Side 4: question mark, Side 5: 6 inches, Side 6: 4 inches, Side 7: 1 inch, Side 8: 11 inches. Perimeter: 41 inches.

  1. 10 in
  2. 8 in
  3. 12 in
  4. 7 in

An ice-skating rink has a perimeter of 201 feet. Can you find the missing side length using what you know about perimeter?

Shape: Side 1: 42 feet, Side 2: 4 feet, Side 3: 6 feet, Side 4: 31 feet, Side 5: question mark, Side 6: 7 feet, Side 7: 56 feet, Side 8: 42 feet, Perimeter 201 feet.

  1. 13 ft
  2. 188 ft
  3. 100 ft
  4. 16 ft

Madelyn's control panel has a perimeter of 34 centimeters. If the length of the control panel is 7 cm, what is the width?

Control Panel: Side 1: 7 centimeters, Side 2: question mark, Side 3: 7 centimeters, Side 4: question mark. Perimeter 34 centimeters.

  1. 2 cm
  2. 6 cm
  3. 10 cm
  4. 10 in

Summary

Questions answered correctly:

Questions answered incorrectly: