quadratic equation ,,nature of roots and its roots

                 QUADRATIC EQUATION

Arithmetic progration (A.P) class 10th

Important basic Algebra formula

Area of triangle, equilateral triangle isosceles triangle heron's formula

Area of quadrilateral rectangle , square, rhombus parallelogram, trapezium perimeter of rectangle , square, parallelogram rhombus

Area of circle semi circle, qudrent, sector cercumfrene of circle, semi circle, qudrent

Circle   

Online Important Mensuration formula for class 9th and 10th and other

Important formula of mensuration 

Class 9th and 10th