Lauretta J. Fox
A square is a rectangle whose four sides are equal in length. The length of each side of a square may be denoted by s. Two consecutive sides of a square are perpendicular and may be used as a base and altitude of the square. Like all other rectangles the area of a square is the product of its base and altitude. Area of a Square = s x s = s
2
(figure available in print form)
EFGH is a square. EF is the base and HE is the altitude of the square. Area of EFGH = EF x HE
Example
1: Find the area of a square whose side is 8 1/4 in.
Solution
: A = s
2
A - 8 1/4 x 8 1/4= 68 1/16 square inches
Example
2: Find the side of a square whose area IS 169 sq. in.
Solution
: s
2
- A s
2
= 169 s = (square root) 169 s= 13
1. Using a metric ruler measure the side of each square and find its area.
(figure available in print form)
2. Using an English ruler measure each square in example 1 and find its area.
3. Find the shaded areas.
(figure available in print form)
4. Find the side of a square if its area is (a) 625, (b) 50.
