posted by Chelsea .
Find the surface area of a right rectangular prism measuring 2 ft by 3 ft by 4 ft
A rectangular prism has 2 ends and 4 sides. Opposite sides have the same area. The surface area is the sum of the areas of all six sides.
Find the area of two sides (Length*Height)*2 sides
Find the area of adjacent sides (Width*Height)*2 sides
Find the area of ends (Length*Width)*2 ends.
Add the three areas together to find the surface area.