Understanding Perimeter

This video tutorial explains the concept of perimeter, which involves adding the outside edges of a figure. It provides examples of calculating the perimeter for different shapes, including a quadrilateral, pentagon, and hexagon. The video emphasizes the importance of combining like terms when dealing with variables and highlights the distinction between perimeter and area.

What is the perimeter of a shape?

• The area inside the shape

• The sum of the outside edges of the shape

• The volume of the shape

• The diagonal length of the shape

In the context of perimeter, what does the term 'basic unit' refer to?

• The total area of the shape

• The smallest side of the shape

• The unit of measurement used for the perimeter

• The number of sides of the shape

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How do you calculate the perimeter of a quadrilateral?

• Multiply all sides together

• Add up all four sides

• Divide the total length by four

• Subtract the smallest side from the largest

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CCSS.3.MD.D.8

What is the perimeter of a quadrilateral with sides 16, 8, 22.5, and 8?

• 54.5

• 48.5

• 50.5

• 52.5

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What is a five-sided shape called?

• Hexagon

• Quadrilateral

• Triangle

• Pentagon

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When combining like terms, what must be the same?

• The coefficients

• The variables and their exponents

• The number of terms

• The shape of the figure

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CCSS.3.MD.D.8

What is the perimeter expression for a pentagon with sides 5, 2x, 2x, 5, and 3x?

• 12x + 5

• 5x + 15

• 10x + 7

• 7x + 10

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What is a six-sided shape called?

• Hexagon

• Pentagon

• Octagon

• Quadrilateral

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How do you combine the terms x + x?

• x^2

• 2x

• 0

• x

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What is the final perimeter expression for a hexagon with sides x, x, 3y, 3y, 4, and 7?

• 5x + 3y + 24

• 4x + 4y + 20

• 3x + 5y + 18

• 2x + 6y + 22

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CCSS.HSA.APR.A.1