Calculating Perimeter of Polygons

The video tutorial explains how to find the perimeter of a polygon by summing the lengths of all its sides. It highlights the process of identifying and calculating missing side lengths using subtraction. Once all side lengths are known, they are added together to determine the total perimeter of the polygon.

What is the first step in finding the perimeter of a polygon?

• Divide the lengths of all sides

• Subtract the lengths of all sides

• Sum the lengths of all sides

• Multiply the lengths of all sides

If the left side of a polygon is 8 units and another side is 5 units, what is the length of the right side?

• 3 units

• 13 units

• 5 units

• 8 units

How do you determine the length of the top side if the bottom side is 12 units and another side is 3 units?

• Divide 12 by 3

• Add 12 and 3

• Subtract 3 from 12

• Multiply 12 by 3

Tags

CCSS.3.MD.D.8

What is the total perimeter of the polygon if the side lengths are 9, 5, 3, 3, 12, and 8 units?

• 40 units

• 30 units

• 60 units

• 50 units

Tags

CCSS.3.MD.D.8

Which of the following is NOT a step in calculating the perimeter of a polygon?

• Multiplying all side lengths

• Summing all side lengths

• Identifying missing side lengths

• Subtracting side lengths to find missing values

Tags

CCSS.3.MD.D.8