Area of squares and rectangles

Learning Objectives Define 'area' and explain its significance. Identify the length, width, and side of squares and rectangles. Apply the correct formulas to calculate the area of squares. Apply the correct formulas to calculate the area of rectangles. Use appropriate square units when expressing area measurements. Solve real-world problems involving the area of squares and rectangles. Determine a missing side length of a square or rectangle given its area and one other dimension. Ever wondered how much carpet you need for your bedroom floor, or how much paint to buy for a wall? 🏠 These are questions about area! In this lesson, you'll learn how to measure the space inside flat shapes like squares and rectangles. Understanding area is a fundamental skill th...

TermDefinitionExample AreaThe amount of two-dimensional space a flat shape or surface covers. It is measured in square units.If a rug covers 10 square feet of floor, its area is 10 square feet. SquareA four-sided flat shape where all four sides are equal in length, and all four angles are right angles (90 degrees).A chessboard is a square because all its sides are the same length. RectangleA four-sided flat shape where opposite sides are equal in length, and all four angles are right angles (90 degrees).A typical door or a piece of paper is a rectangle. Length (l)The longer side of a rectangle, or one of the sides of a square.If a table is 5 feet long and 3 feet wide, its length is 5 feet. Width (w)The shorter side of a rectangle, or one of the sides of a square.If a table is 5 feet long...

Area of a Rectangle $A = l \times w$ To find the area (A) of a rectangle, multiply its length (l) by its width (w). Remember, length and width must be in the same units. Area of a Square $A = s \times s \quad \text{or} \quad A = s^2$ To find the area (A) of a square, multiply the length of one side (s) by itself. This is because a square is a special type of rectangle where length and width are equal. Finding a Missing Side of a Rectangle $l = A \div w \quad \text{or} \quad w = A \div l$ If you know the area (A) of a rectangle and one of its dimensions (length or width), you can find the missing dimension by dividing the area by the known dimension.