What is the surface area of a rectangular solid with dimensions 4 cm, 6 cm, and 8 cm?

The surface area of a rectangular solid, also known as a rectangular prism, can be calculated using the formula:

  • Surface Area (SA) = 2(lw + lh + wh)

Where:

  • l: length
  • w: width
  • h: height

In this case, the dimensions of the rectangular solid are:

  • Length (l) = 4 cm
  • Width (w) = 6 cm
  • Height (h) = 8 cm

Now, substituting the values into the formula:

  • lw = 4 cm * 6 cm = 24 cm²
  • lh = 4 cm * 8 cm = 32 cm²
  • wh = 6 cm * 8 cm = 48 cm²

Next, sum these areas:

  • lw + lh + wh = 24 cm² + 32 cm² + 48 cm² = 104 cm²

Finally, multiply by 2 to find the total surface area:

  • SA = 2 * 104 cm² = 208 cm²

Therefore, the surface area of the rectangular solid is 208 square centimeters.

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