How does the area of the rectangle relate to the lengths of each side?

A = l×b

Explanation:

Rectangle is a closed figure with 4 vertices. Each angle of a rectangle is 90 degrees. The opposite sides of a rectangle are equal.

Let l is the length of opposite sides of a rectangle and b is the breadth of the opposite sides of a rectangle.

The area of a rectangle is then given by :

A = l×b

i.e. area of a rectangle is equal to length times breadth.