Understanding Perimeter of Composite Figures

What is a composite figure?

• A figure with no sides

• A figure made of two or more shapes

• A figure that is always circular

• A figure made of only one shape

What does the perimeter of a figure represent?

• The volume of the figure

• The distance around the figure

• The area inside the figure

• The number of sides of the figure

How do you find the perimeter of a composite figure?

• By multiplying all side lengths

• By dividing the total area by the number of sides

• By subtracting the smallest side length

• By adding all side lengths

In the example, what is the length of the side calculated by subtracting 8 meters from 13 meters?

• 13 meters

• 8 meters

• 5 meters

• 3 meters

What is the formula for the circumference of a semicircle?

• 2 times pi times radius

• pi times radius squared

• pi times diameter

• pi times diameter divided by 2

What is the perimeter of the rectangle in the example?

• 26 meters

• 18 meters

• 33 meters

• 52 meters

How is the diameter of the semicircle determined in the example?

• By measuring the longest side of the rectangle

• By using the height of the rectangle

• By measuring the diagonal of the rectangle

• By using the width of the rectangle

What is the calculated perimeter of the semicircle in the example?

• 26 meters

• 7.85 meters

• 33 meters

• 15.7 meters

What is the total perimeter of the composite figure made of a rectangle and a semicircle?

• 52 meters

• 33 meters

• 26 meters

• 33.85 meters

What should you do to effectively solve problems involving composite figures?

• Guess the measurements

• Ignore the formulas

• Only use a calculator

• Memorize the formulas