Surface Area of Cubes & Rectangular Prisms Quick Check
3 of 53 of 5 Items
Question
Use the image to answer the question.
An illustration shows a rectangular prism with length 12 inches, width 5 inches, and height 3 inches. The top, front, and right faces are visible. The edges that are not visible are represented by dashed lines.
Solve for the surface area of the rectangular prism.
(1 point)
Responses
111 square inches
111 square inches
222 square inches
222 square inches
180 square inches
180 square inches
270 square inches
The surface area of a rectangular prism can be found by adding the areas of all six faces.
The top and bottom faces have an area of 12 inches * 5 inches = 60 square inches each.
The front and back faces have an area of 12 inches * 3 inches = 36 square inches each.
The right and left faces have an area of 5 inches * 3 inches = 15 square inches each.
Adding all these together, we get:
60 + 60 + 36 + 36 + 15 + 15 = 222 square inches.
Therefore, the correct answer is:
222 square inches