## The Area of a Rectangle:

• Rectangle: A rectangle is a geometrical figure with two pairs of parallel sides and four right angles. The opposite sides of a rectangle are equal, but the adjacent sides are not. An example of a rectangle is a four by 6 picture frame.
• Area: The area of a rectangle is the amount of space covered by the figure. We calculate the area of a rectangle using the formula {eq}A = l\times w {/eq}.

The area of a rectange is calculated as:

• {eq}A = l\times w {/eq}, where {eq}l {/eq} is the length and {eq}w {/eq} is the width.

If Sandra's room is {eq}l= 15\; \rm ft {/eq} long and {eq}w = 8\; \rm ft {/eq} wide, the area of the room is:

• {eq}A = 15\; \rm ft\times 8\; \rm ft = 120 \; \rm ft^2 {/eq}

If Sandra is putting a carpet in her room and it costs $3.75 per square foot, then the cost of the whole carpet is: • {eq}C = \$3.75\times 120 {/eq}
• {eq}\boxed{\color{blue}{C = \\$450}} {/eq}