what is the formula of Surface Area of Rectangular Prisms
http://www.math.com/tables/geometry/surfareas.htm
thank you
You're welcome.
The formula to calculate the surface area of a rectangular prism is as follows:
Surface Area = 2(lw + lh + wh)
To understand how this formula is derived, let's break it down step by step:
Step 1: Identify the dimensions of the rectangular prism:
- l represents the length of the prism.
- w represents the width of the prism.
- h represents the height of the prism.
Step 2: Calculate the areas of the six faces of the rectangular prism:
- The front and back faces have areas of lw each.
- The top and bottom faces have areas of wh each.
- The left and right faces have areas of lh each.
Step 3: Add up the areas of all six faces to get the total surface area of the rectangular prism:
- lw + lw + wh + wh + lh + lh = 2lw + 2wh + 2lh
By combining like terms, we can simplify this expression to:
- 2(lw + lh + wh)
Therefore, the formula for the surface area of a rectangular prism is 2(lw + lh + wh).