Perimeter and Area (squares/rectangles)

The perimeter of a rectangle is the total distance around it, calculated as $$2 \times (length + width)$$ .

The area of a rectangle is the space inside it, calculated as $$length \times width$$ .

The perimeter of a square is the total distance around it, calculated as $$4 \times side$$ .

The area of a square is the space inside it, calculated as $$side \times side$$ or $$side^2$$ .

Perimeter.

Perimeter.

The formula for the perimeter of a rectangle is $$2 \times (length + width)$$ .

The formula for the area of a rectangle is $$length \times width$$ .

The area is $$11 \times 11 = 121$$ sq. ft.

The perimeter is $$2 \times (5 + 3) = 16$$ cm.