Perimeter of Composite Rectangles

Find the perimeter

• 14 m

• 43.96m

• 176 m

• 191.96 m

Look at the composite figure. How could you find the perimeter of the figure?

• Add the four side lengths shown in the diagram.

• Divide the figure into two rectangles. Find the perimeter of each rectangle. Add the two perimeters.

• Find the two missing side lengths and add them to the four side lengths shown in the diagram.

• Multiply the four side lengths shown in the diagram.

What are the two missing side lengths?

• 6 cm and 2 cm

• 4 cm and 7 cm

• 9 cm and 7 cm

• 6 cm and 10 cm

What is the perimeter of the composite figure?

• 28

• 21

• 22

• 14

What attribute is used to determine the perimeter of a composite figure?

• Length of sides

• Area of subdivisions

• Volume of subdivisions

• Circumference of subdivisions

When solving contextual problems involving composite plane figures, what should be the final step?

• Subdividing the figure into known shapes

• Identifying the number of sides in the figure

• Finding the dimensions of the figure

• Calculating the area or perimeter of the entire figure

What formulas can be applied to solve problems involving composite plane figures?

• Diameter, radius, and area formulas

• Volume, surface area, and perimeter formulas

• Length, width, and height formulas

• Perimeter, circumference, and area formulas

Which attribute is used to determine the perimeter of a composite plane figure?

• Circumference of the subdivisions

• Volume of the subdivisions

• Area of the subdivisions

How can the perimeter of a composite plane figure be calculated?

• By dividing the areas of the subdivisions

• By subtracting the areas of the subdivisions

• By multiplying the areas of the subdivisions

• By adding the perimeters of the subdivisions

What is the perimeter of the fence?

• 15

• 30

• 35

• 25