Category Geometry Formulas

Pentagon Formulas 1. Area of Regular Pentagon Formula Area = 1 4 s 2 × √ 5 + 2 √ 5 Area of a pentagon using side length (s). 2. Perimeter of Regular Pentagon Formula Perimeter = 5 × s…

Kite Formulas 1. Area of Kite Formula Area = d₁ × d₂ 2 Area is half the product of the diagonals (d₁ and d₂). 2. Perimeter of Kite Formula Perimeter = 2 ( a + b ) Perimeter is twice…

Trapezium Formulas 1. Area of Trapezium Formula Area = ( a + b ) 2 × h Area is the average of the two parallel sides (a, b) multiplied by height (h). 2. Perimeter of Trapezium Formula Perimeter = a…

Circle Formulas 1. Area of Circle Formula Area = π × r 2 Area is π times the square of the radius (r). 2. Circumference of Circle Formula Circumference = 2 π × r Circumference is 2π times the radius…

Rhombus Formulas 1. Area of Rhombus Formula Area = d₁ × d₂ 2 Area is half the product of its diagonals (d₁ and d₂). 2. Perimeter of Rhombus Formula Perimeter = 4 a Perimeter is four times the side length…

Parallelogram Formulas 1. Area of Parallelogram Formula Area = b × h Area is base (b) times height (h). 2. Perimeter of Parallelogram Formula Perimeter = 2 ( a + b ) Perimeter is twice the sum of adjacent sides…

Rectangle Formulas 1. Area of Rectangle Formula Area = l × b The area is the product of length (l) and breadth (b). 2. Perimeter of Rectangle Formula Perimeter = 2 ( l + b ) The perimeter is twice…

Square Formulas 1. Area of Square Formula Area = s 2 The area is the square of one side (s). 2. Perimeter of Square Formula Perimeter = 4 s The perimeter is four times the side length (s). 3. Diagonal…

Triangle Formulas 1. Area of Triangle Formula Area = Base × Height 2 Area is half the product of base and height. 2. Heron’s Formula for Area of Triangle Area = s ( s − a ) ( s −…