Finding the Perimeter of Composite Figures

The video tutorial introduces composite figures, which are made up of two or more two-dimensional shapes like triangles, squares, rectangles, and circles. It explains how to calculate the perimeter of these figures by finding the total distance around them, using examples such as a house and a window. The tutorial includes practice problems involving semicircles, rectangles, triangles, and squares, demonstrating how to calculate the perimeter by combining the circumferences and side lengths of these shapes.

What is a composite figure?

• A figure made up of only circles

• A figure made up of two or more two-dimensional shapes

• A figure made up of only triangles

• A figure made up of three-dimensional shapes

Which of the following is NOT a step in finding the perimeter of a composite figure?

• Traveling around the figure

• Picking a starting point

• Adding the interior measurements

• Calculating the total distance around the figure

In the example with two semicircles and a rectangle, what is the diameter of the semicircles?

• 5 inches

• 7 inches

• 4 inches

• 6 inches

What is the perimeter of the composite figure made of two semicircles and a rectangle?

• 52.84 inches

• 50.84 inches

• 48.84 inches

• 45.84 inches

In the example with a semicircle and a triangle, what is the diameter of the semicircle?

• 3 inches

• 4 inches

• 6 inches

• 5 inches

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

• 12.85 inches

• 13.85 inches

• 14.85 inches

• 15.85 inches

In the practice problem, what is the side length of the square?

• 10 centimeters

• 8 centimeters

• 11 centimeters

• 9 centimeters