Finding the Perimeter of a Rectangle

This video tutorial explains how to find the perimeter of a rectangle using an algorithm. It distinguishes between area and perimeter, provides a step-by-step guide to calculating perimeter using a formula, and verifies the result with an area model. The tutorial concludes with a practical application of the concept to determine the length of a fence needed for a yard.

What is the main difference between area and perimeter?

• Area and perimeter both measure the distance around a shape.

• Area measures the distance around a shape, while perimeter measures the space inside it.

• Area and perimeter both measure the space inside a shape.

• Area measures the space inside a shape, while perimeter measures the distance around it.

Why is it important to use the correct algorithm when solving a problem?

• To guarantee the correct answer is found

• To ensure the problem is solved quickly

• To make the problem more complex

• To avoid using variables

Which formula is used to calculate the perimeter of a rectangle?

• P = L * W

• P = 2(L + W)

• P = L + W

• P = 2L + 2W

In the example given, what is the perimeter of a rectangle with a length of 4 yards and a width of 3 yards?

• 16 yards

• 18 yards

• 14 yards

• 12 yards

How can you verify the perimeter of a rectangle using an area model?

• By multiplying the length and width of the rectangle.

• By counting the number of squares along the perimeter of the rectangle.

• By counting the number of squares inside the rectangle.

• By adding the length and width of the rectangle.

What is the perimeter of a yard that is 20 yards long and 20 yards wide?

• 60 yards

• 70 yards

• 90 yards

• 80 yards

If you need to fence a rectangular yard, which measurement do you need to calculate?

• The area of the yard

• The perimeter of the yard

• The diagonal of the yard

• The volume of the yard