Understanding Perimeter and Shapes

This video tutorial introduces the concept of perimeter, explaining it as a one-dimensional measurement representing the distance around a closed shape. It covers how to calculate the perimeter by adding the lengths of a shape's sides and emphasizes the use of singular units. The tutorial provides examples, including calculating the perimeter of a rectangle using both direct addition and formulas. It also explores more complex polygons and applies the concept to real-life scenarios, such as determining the distance Joseph travels on Mondays.

What is the perimeter of a shape?

• The area inside a shape

• The distance around a shape

• The volume of a shape

• The diagonal of a shape

Which of the following is NOT a unit for measuring perimeter?

• Inches

• Feet

• Centimeters

• Square meters

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CCSS.4.MD.A.3

How do you calculate the perimeter of a rectangle?

• Multiply the length by the width

• Add the lengths of all sides

• Subtract the width from the length

• Divide the length by the width

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CCSS.4.MD.A.3

What is the perimeter of a rectangle with sides 8 cm and 3 cm?

• 26 cm

• 20 cm

• 24 cm

• 22 cm

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CCSS.4.MD.A.3

Which formula can be used to find the perimeter of a rectangle?

• P = 2l + 2w

• P = l + w

• P = l * w

• P = 2l * 2w

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CCSS.4.MD.A.3

In the formula P = 2l + 2w, what do 'l' and 'w' represent?

• Base and width

• Length and width

• Base and height

• Length and height

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CCSS.3.MD.D.8

How do you find the missing side length of a polygon?

• Add the known sides

• Divide the known sides

• Multiply the known sides

• Subtract the known sides from the total perimeter

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CCSS.3.MD.D.8

What is the perimeter of a polygon with sides 5, 3, 6, 2, 3, and 3 inches?

• 20 inches

• 22 inches

• 24 inches

• 26 inches

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CCSS.4.MD.A.2

How far does Joseph travel on Mondays according to the example?

• 12 miles

• 15 miles

• 18 miles

• 20 miles

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CCSS.1.G.A.1

CCSS.2.G.A.1

What shape is used to determine Joseph's travel distance?

• Square

• Rectangle

• Triangle

• Circle

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CCSS.1.G.A.1

CCSS.2.G.A.1