The net of a rectangular prism shows two rectangles each with measurements 15 inches by 12 inches, two other rectangles with measurements 12 inches by 6 inches, and two more rectangles with measurements 15 inches by 6 inches. What is the surface area of the rectangular prism this net creates in square inches? (1 point) Responses 342 in.2 342 in squared 324 in.2 324 in squared 1,080 in.2 1,080 in squared 684 in.2

1 answer

To find the surface area of the rectangular prism represented by the net, we can use the areas of the rectangles provided.

We have:

  • Two rectangles with measurements 15 inches by 12 inches.
  • Two rectangles with measurements 12 inches by 6 inches.
  • Two rectangles with measurements 15 inches by 6 inches.

Now, we can calculate the area of each set of rectangles:

  1. Area of the 15 inches by 12 inches rectangles: \[ \text{Area} = 15 \times 12 = 180 \text{ square inches (for one rectangle)} \] Since there are two of these rectangles, the total area is: \[ 2 \times 180 = 360 \text{ square inches} \]

  2. Area of the 12 inches by 6 inches rectangles: \[ \text{Area} = 12 \times 6 = 72 \text{ square inches (for one rectangle)} \] Since there are two of these rectangles, the total area is: \[ 2 \times 72 = 144 \text{ square inches} \]

  3. Area of the 15 inches by 6 inches rectangles: \[ \text{Area} = 15 \times 6 = 90 \text{ square inches (for one rectangle)} \] Since there are two of these rectangles, the total area is: \[ 2 \times 90 = 180 \text{ square inches} \]

Now, we can add the areas of all the rectangles to find the total surface area of the rectangular prism:

\[ \text{Total Surface Area} = 360 + 144 + 180 = 684 \text{ square inches} \]

Thus, the surface area of the rectangular prism is: \[ \boxed{684 \text{ in.}^2} \]