The composite shape in the image has an area of 40 square inches. What is the area of the rectangle within the composite shape?
A. 34 square inches
B. 28 square inches
C. 7 square inches
D. 16 square inches
B. 28 square inches
The area of the entire composite shape is 40 square inches. The area of the triangle within the composite shape is 12 square inches (40 - 28). Since the triangle has an area of 12 square inches, the rectangle within the composite shape must have an area of 28 square inches.