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
width times height
Surface area of a sphere = 4πr2
The area formula for the parallelogram is related to the area formula for a rectangle because you can make the parallelogram into a rectangle to find the area.
The formula for the area of a rectangle is length x breadth. In order to prove this works, work out an area of a rectangle using that formula.
Area of a rectangle: a = l * w
If the base is a rectangle, use the formula for the area of a rectangle.
The formula is for a square and rectangle is A=bh or A=lw
A = lw Area of a rectangle = length times width
In the formula for the rectangle, put the width equal to the length.
How do you find the suface area of a net? Answer: Do the formula for each shape that is in the net.
Rectangle
rectangle