Rectangle Area and Perimeter Problems

This video tutorial explains how to find missing dimensions in rectangles by using area and perimeter formulas. It demonstrates solving for unknown side lengths when given either the area or perimeter of a rectangle. The tutorial emphasizes the importance of choosing the correct formula based on the information provided and includes step-by-step examples for clarity.

What is the first step in finding a missing dimension of a rectangle?

• Guess the missing dimension

• Draw the rectangle

• Identify the given information

• Calculate the perimeter

Which formula is used when the area of a rectangle is given?

• Perimeter = 2(length + width)

• Area = length + width

• Area = length x width

• Perimeter = length x width

What is the formula for the area of a rectangle?

• Area = length + width

• Area = length x width

• Area = 2(length + width)

• Area = length - width

If the area of a rectangle is 24 cm² and the length is 3 cm, what is the width?

• 6 cm

• 8 cm

• 9 cm

• 12 cm

What is the opposite operation of multiplying by 3?

• Adding 3

• Subtracting 3

• Dividing by 3

• Multiplying by 3

What is the result of 24 divided by 3?

• 9

• 12

• 8

• 6

What is the missing side length if the area is 24 cm² and the length is 3 cm?

• 6 cm

• 8 cm

• 12 cm

• 9 cm

Why is it important to include a label when stating the side length?

• To make the answer longer

• To make it look professional

• To confuse the reader

• To ensure clarity and accuracy

What unit is used for side length when dealing with area?

• Meters

• Inches

• Centimeters squared

• Centimeters

What information is needed to use the perimeter formula?

• Either area or perimeter

• Only the width

• Only the length

• Both length and width