Squares and Rectangles A square is a quadrilateral with four equal sides and four equal angles. The side length of a square is constant and is denoted b...
Squares and Rectangles
A square is a quadrilateral with four equal sides and four equal angles. The side length of a square is constant and is denoted by the letter 's'. The area of a square is calculated by squaring the side length and is represented by the letter 'A'.
A rectangle is a quadrilateral with four sides of different lengths. The opposite sides of a rectangle are equal in length, but the adjacent sides can be different. The length of the sides of a rectangle is denoted by the letters 'a' and 'b', where 'a' and 'b' are the lengths of the two adjacent sides. The area of a rectangle is calculated by multiplying the length and width of the rectangle and is represented by the letter 'A'.
Examples:
A square with side length 5 cm has an area of 25 cm².
A rectangle with dimensions 5 cm and 3 cm has an area of 15 cm².
Perimeter and Area Formulae:
Perimeter of a square: s = 4s
Perimeter of a rectangle: a + b = 2(a + b)
Area of a square: A = s²
Area of a rectangle: A = ab