Calculating Dimensions and Areas

This video tutorial is part of the Goal Map series, focusing on Chapter 13, Lesson 13.4, which teaches how to find unknown measures of a rectangle given its area or perimeter. The lesson begins with an essential question and proceeds with two examples: finding the height of a mural using its area and finding the length of a dog pen using its perimeter. The video concludes with practice questions to reinforce the concepts learned.

What is the essential question discussed in the introduction?

• How to solve quadratic equations?

• How to calculate the area of a circle?

• How to determine the volume of a cube?

• How to find an unknown measure of a rectangle given its area or perimeter?

In Example 1, what is the area of the mural Tanisha is painting?

• 72 square feet

• 45 square feet

• 54 square feet

• 60 square feet

What is the base of the mural in Example 1?

• 8 feet

• 9 feet

• 12 feet

• 6 feet

How do you calculate the height of the mural in Example 1?

• Subtract the base from the area

• Add the base to the area

• Multiply the area by the base

• Divide the area by the base

What is the height of the mural in Example 1?

• 6 feet

• 5 feet

• 8 feet

• 7 feet

In Example 2, what is the perimeter of the pen Gary is building?

• 26 meters

• 24 meters

• 22 meters

• 20 meters

What is the width of the pen in Example 2?

• 2 meters

• 3 meters

• 5 meters

• 4 meters

How do you calculate the length of the pen in Example 2?

• Subtract the width from the perimeter

• Divide the perimeter by the width

• Use the formula: Perimeter = 2 * Length + 2 * Width

• Multiply the width by the perimeter

What is the length of the pen in Example 2?

• 9 meters

• 8 meters

• 7 meters

• 6 meters

In the practice problems, what is the perimeter of the rectangle in question 2?

• 44 centimeters

• 42 centimeters

• 46 centimeters

• 40 centimeters