Question

Use the L-shaped composite figure formed by two rectangular prisms to answer the question. A 10-inch by 0.5-of-a-foot by 7-inch prism attached to a 10-inch by 1-foot by 4-inch prism. One 10-inch by 0.5of-a-foot face of the top prism covers the same area on the other prism. © 2018 StrongMind What is the surface area of the composite figure in square inches? Enter your answer as a number, like this: 42

Answer 1

The composite figure, formed by attaching a 10x0.5x7-inch prism to a 10x1x4-inch prism, has a total surface area of 275 square inches. Calculated by summing the individual prism surface areas.

To determine the composite figure's surface area, calculate each prism's surface area separately and then sum them.

For the first prism (10 inches by 0.5 feet by 7 inches), the total surface area is 167 square inches.

For the second prism (10 inches by 1 foot by 4 inches), the total surface area is 108 square inches.

Combining both, the composite figure has a surface area of 275 square inches.