Math Mensuration Formulae

Circumference of a Circle

2πr

Area of a circle

A=πr²

Area of a rectangle formula

A= Length x Breadth

Perimeter of a rectangle formula

length x 2 + width x 2

Area of a square

A=s²

perimeter of a square formula

P=4s

Area of a Rhombus

A=1/2d1d2

Perimeter of a rhombus

sum of sides

Area of a triangle

A= 1/2 bh

Perimeter of a triangle

P = a + b + c

Add all sides

Area of a prallelogram

A=bh

Perimeter of a parallelogram

Perimeter = 2(Sum of adjacent sides)

Area of a trapezium

1/2 (a+b) x h

Perimeter of a trapezium

sum of all sides

Perimeter of a general quadrilateral

Perimeter = Sum of length of all the sides

Area of General Quadrilateral

1/2 diagonal height1 *height2

Curved Surface Area of Cone

Curved Surface Area of Cylinder

Curved Surface Area of Sphere

Curved Surface Area of Hemishphere

Curved Surface Area of Hollow Cylinder

Curved Surface Area of Frustum

Curved Surface Area of Hollow hemisphere