Calculating Perimeters of Shapes

This video tutorial covers the concept of calculating the perimeter of various geometric shapes, including squares, rectangles, and triangles. It provides examples and step-by-step instructions for determining the perimeter of each shape using specific formulas. The video also includes practical examples to help viewers understand how to apply these formulas in real-life scenarios. The tutorial concludes with a summary and encouragement to engage with the content.

What is the perimeter of a square with side length 10 cm?

• 20 cm

• 30 cm

• 40 cm

• 50 cm

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CCSS.4.MD.A.3

If the perimeter of a square is 20 m, what is the length of one side?

• 7 m

• 5 m

• 4 m

• 6 m

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CCSS.4.MD.A.3

How do you calculate the perimeter of a rectangle?

• 2 times length plus 2 times width

• Length plus width

• Multiply length by width

• Add all sides

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CCSS.4.MD.A.3

A rectangle has a length of 8 cm and a width of 5 cm. What is its perimeter?

• 30 cm

• 36 cm

• 40 cm

• 26 cm

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CCSS.4.MD.A.3

If a rectangle's perimeter is 12 m and its length is 4 m, what is its width?

• 3 m

• 2 m

• 1 m

• 4 m

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CCSS.3.MD.D.8

What is the formula for the perimeter of a triangle?

• Base times height

• Base plus height

• Sum of all sides

• 2 times base plus height

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CCSS.3.MD.D.8

A triangle has sides of 8 cm, 4 cm, and 6 cm. What is its perimeter?

• 20 cm

• 18 cm

• 22 cm

• 16 cm

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CCSS.3.MD.D.8

If a triangle's perimeter is 22 m and two sides are 10 m and 5 m, what is the length of the third side?

• 7 m

• 6 m

• 8 m

• 5 m

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CCSS.3.MD.D.8

What is the perimeter of a triangle with sides 6 cm, 8 cm, and 10 cm?

• 26 cm

• 24 cm

• 22 cm

• 20 cm

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CCSS.3.MD.D.8

What should you do after understanding the concept of perimeter?

• Forget it

• Practice more

• Share with friends

• Ignore it

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CCSS.3.MD.D.8