Area in square units = length*width
If the base is a rectangle, use the formula for the area of a rectangle.
The formula will depend on what it is that you are trying to find: the volume or the surface area.
surface area of a rectangular prism is the formula: 2lw+2wh+2lh
A= 2(wh+lw+lh) where w = width h = height and l = length When trying to find the surface area of something, it is important to try to remember the specific formula. The formula for the surface area of a rectangular prism is A=2(wl+hl+hw).
The formula for the area of a rectangular prism is A= 2(wL+hL+hw). A refers to area, w is the width of the prism, h refers to height, and L is the length of the prism.
u have to find the surface area for individual sides. so lxw for each individual side
surface area=(perimeter of base)x(height of the shape)+(area of the base)x(2)
LxWx2
Bh
Suppose that the area of the rectangular base is: lw then if the height is: h the surface area is: lw + lh + wh I believe that formula is for the surface area of a rectangular prism...
The formula for a rectangle is height x width (A=ab)Since you said surface area, I'm pretty sure that you might mean a rectangular prism. To get this, you would need to find the area of each "rectangle side". To do this, you use the first formula, using height (a), width (b), and depth (c). The formula for theSurface Area of a Rectangular Prism = 2ab + 2bc + 2ac
A rectanglar or even rectangular, is an adjective and there is no such thing. You can have a rectangular pyramid or a rectangular prism. The formula will depend on which of these it is and on what information is available to you.