Question

Use the image to answer the question.

A composite figure is comprised of a rectangle and two congruent right triangle on either side. The triangle have a height of 4 inches and a width of 3 inches.

The composite shape in the image has an area of 40 square inches. What is the area of the rectangle within the composite shape?

(1 point)

16 square inches

34 square inches

7 square inches

28 square inches
Skip to navigation

Answer 1

Each right triangle has area 1/2·3·4 = 6 in². Two triangles have area 12 in². Rectangle area = total area − triangles' area = 40 − 12 = 28 in².

Answer: 28 square inches.