Find the surface area of a rectangular prism whose length is 18 millimeters, height is 10 millimeters, and width is 2 millimeters.(1 point)
mm2
The surface area of a rectangular prism can be calculated by adding up the areas of all its faces.
For the given prism:
- The area of the front and back faces (which are identical) = length * height = 18 mm * 10 mm = 180 mm^2
- The area of the top and bottom faces (which are identical) = length * width = 18 mm * 2 mm = 36 mm^2
- The area of the side faces (which are identical) = width * height = 2 mm * 10 mm = 20 mm^2
Therefore, the total surface area of the rectangular prism is:
180 mm^2 (front and back) + 36 mm^2 (top and bottom) + 20 mm^2 (sides) = 236 mm^2
So, the surface area of the rectangular prism is 236 mm^2.