Calculating Perimeter of Polygons

This video tutorial 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 in perimeter calculation, and provides step-by-step guidance on calculating the perimeter of a polygon. The lesson includes practical examples and revisits calculations for reinforcement.

What does the perimeter of a polygon represent?

• The space inside the polygon

• The distance around the polygon

• The volume of the polygon

• The number of sides of the polygon

Why is it important to distinguish between area and perimeter?

• They are both related to volume

• They are calculated the same way

• They represent different measurements

• They have the same units

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

• Adding the side lengths incorrectly

• Ignoring the corners of the polygon

• Counting the area instead of the perimeter

• Confusing perimeter with volume

What is a key step in avoiding mistakes when calculating perimeter?

• Calculating the area first

• Ignoring the corners

• Counting all sides accurately

• Measuring the angles

What should you do if you confuse a side length with a diagonal?

• Ignore the diagonal

• Measure the diagonal instead

• Ensure the side length stops at a corner

• Recalculate the area

How can you find the side lengths of a polygon?

• By calculating the area

• By counting the squares along each side

• By dividing the perimeter by the number of sides

• By measuring the angles

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

• Divide the side lengths

• Add up the side lengths

• Subtract the side lengths

• Multiply the side lengths

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

• 18 units

• 24 units

• 20 units

• 22 units

What is the perimeter of the first polygon revisited in the lesson?

• 24 units

• 22 units

• 20 units

• 18 units

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

• Divide the total by the number of sides

• Subtract the smallest side length

• Add all the side lengths together

• Multiply the side lengths