Which formula is used to find the area of a rectangle?

• A. A = L × W
• B. V = L × W × H
• C. A = (B × H) ÷ 2
• D. Pi × D

Answer: (A)

The area of a rectangle is found by multiplying its length by its width. Visualize laying out the rectangle as a grid of unit squares: along the length you have L units, along the width you have W units, so the total number of unit squares inside is L × W. That product gives the area in square units.

The other formulas correspond to different concepts. V = L × W × H is for volume of a rectangular prism, needing a third dimension. A = (B × H) ÷ 2 is the area of a triangle, using base and height with a half factor. Pi × D relates to a circle’s circumference (and for area you’d use πr²).