Finding Missing Side Lengths in Polygons

The video tutorial explains how to find a missing side length of a polygon when the perimeter is known. It involves subtracting the known side lengths from the total perimeter. Two examples are provided to illustrate the method, showing step-by-step calculations to determine the missing side length.

What is the main challenge in the problems discussed in the video?

• Determining a missing side length when the perimeter is known

• Identifying the type of polygon

• Calculating the volume of a shape

• Finding the area of a polygon

How is the perimeter of a polygon defined?

• The sum of all interior angles

• The distance around the outside of the polygon

• The total area covered by the polygon

• The length of the longest side

What is the first step in finding a missing side length when the perimeter is known?

• Subtract the known side lengths from the total perimeter

• Multiply the side lengths

• Divide the perimeter by the number of sides

• Add all the side lengths together

In the first example, what is the total perimeter of the polygon?

• 16

• 18

• 19

• 17

What is the missing side length in the first example problem?

• 6 yards

• 8 yards

• 5 yards

• 7 yards

What is the sum of the known side lengths in the first example?

• 13

• 12

• 11

• 10

In the second example, what is the total perimeter of the polygon?

• 17

• 16

• 15

• 14

What is the missing side length in the second example problem?

• 4 centimeters

• 5 centimeters

• 6 centimeters

• 7 centimeters

What is the sum of the known side lengths in the second example?

• 9

• 10

• 12

• 11

What is the final step in finding the missing side length?

• Multiply the perimeter by the number of sides

• Divide the perimeter by the sum of known sides

• Subtract the sum of known sides from the perimeter

• Add the missing side length to the perimeter