Math Formulas

PERIMETER OF A RECTANGLE FORMULA

The sum of all the sides of a rectangle is known as perimeter. Since all the sides of a rectangle are congruent, we just need to know the length and width. Perimeter of a Rectangle Formula is given as, PerimeterofaRectangle=2(Length+Width)PerimeterofaRectangle=2(Length+Width) SOLVED EXAMPLES Question 1: Find the perimeter of a [...]

PERFECT SQUARE FORMULA

When a polynomial is multiplied by itself, then it is a perfect square. Example – this polynomial ax2 + bx + c; if b2 = 4ac is a perfect square. Perfect Square Formula is given as, (a+b)2=a2+2ab+b2(a+b)2=a2+2ab+b2 Solved Examples Question: Is x2 + 10x + 25 a perfect square or not ? Solution: x2 + 10x + 25 = x2 + [...]