Calculating Perimeter of Polygons

This video tutorial explains how to calculate the perimeter of an irregular polygon. It begins with an introduction to the concept of perimeter, defined as the distance around a figure. The tutorial then demonstrates how to calculate the perimeter by summing the lengths of all sides of the polygon. A step-by-step example is provided, showing the addition of side lengths to arrive at a total perimeter of 26 units. The lesson concludes with a summary of the key points covered.

What is the perimeter of a polygon?

• The number of sides of the polygon

• The distance around the polygon

• The volume of the polygon

• The area inside the polygon

What makes a polygon irregular?

• Sides and angles are not equal

• All sides are equal

• All angles are equal

• It has more than four sides

How do you calculate the perimeter of an irregular polygon?

• Subtract the shortest side from the longest side

• Divide the total area by the number of sides

• Add up the lengths of all the sides

• Multiply the length of one side by the number of sides

If a polygon has sides of lengths 5, 2, 2, 5, 4, 4, 1, and 3, what is its perimeter?

• 27 units

• 24 units

• 26 units

• 25 units

What is the first step in calculating the perimeter of an irregular polygon?

• Identify the longest side

• Measure the angles

• List the lengths of all sides

• Count the number of sides

What is the sum of the first three sides in the example polygon?

• 11

• 10

• 7

• 9

What is the sum of the next two sides after the first three in the example polygon?

• 10

• 11

• 9

• 8

What is the sum of the last three sides in the example polygon?

• 8

• 7

• 9

• 6

What is the total sum of all sides in the example polygon?

• 27

• 26

• 25

• 24

What is the sum of the first two sides in the example polygon?

• 8

• 5

• 7

• 6