Finding the Perimeter of Polygons with More than Four Sides

This lesson teaches how to find the perimeter of polygons with more than four sides by adding the side lengths. It explains the difference between perimeter and area, highlights common mistakes, and provides a step-by-step guide to calculating perimeter. Example problems are solved to reinforce the concept, and the lesson concludes with a summary of key points.

What is the main difference between perimeter and area?

• Perimeter and area both measure the distance around a shape.

• Perimeter and area both measure the space inside a shape.

• Perimeter measures the distance around a shape, while area measures the space inside it.

• Perimeter measures the space inside a shape, while area measures the distance around it.

Which of the following is a common mistake when calculating perimeter?

• Forgetting to count all sides of the shape.

• Counting the area instead of the perimeter.

• Confusing the side lengths with the diagonal lengths.

• Adding the side lengths incorrectly.

How do you find the perimeter of a polygon?

• Multiply the side lengths together.

• Add up all the side lengths.

• Subtract the shortest side from the longest side.

• Divide the total area by the number of sides.

In the example provided, what is the perimeter of the polygon?

• 22 units

• 20 units

• 24 units

• 26 units

What is the final step in calculating the perimeter of a polygon?

• Multiply the side lengths by the number of sides.

• Divide the total by the number of sides.

• Add the side lengths together to get the total.

• Subtract the smallest side length from the total.