How to obtain the surface area of a rectangular prism?
To find the surface area, you must find the area of each surface and add them all together. First, you must know that the dimensions of a prism are length, width, and height. Step 1: find the area of the ends To find the area of one end, multiply the width of the prism by the height of the prism. Since there are two ends, you must multiply this amount by two. Step 2: find the area of the sides To find the area of a side, multipy the length of the prism by the height of the prism. Since it is a rectangular prism, it has four sides. This means you must multiply the area of a side by four. Step 3: add the areas together. Simply add the amounts you have from steps one and two. Example: Find the area of a rectangular prism with length 3cm, width 4cm, and height 7cm. Step 1: find the area of the ends The area of one end is: area of one end = width * height area of one end = 4cm * 7cm area of one end = 28cm^2 Since there are two ends, you must multiply this amount by 2. total area of ends = a
