Atomic mass can be determined by applying the following formula. Atomic mass = (w1A1 + w2A2)/(w1+w2)…
Category: STD09
Lines and angles – Summary
If a ray stands on a line, then the sum of the two adjacent angles so…
STD09 Topics
Maths Number system Polynomials Coordinate geometry Linear equations Introduction to Euclid’s geometry Lines and angles Triangles…
Arithmetic Progressions
nth Term of Arithmetic progression: Concept Map Sum of n terms of A.P. concept map
Congruent vs Similar Triangles
Presented by Pranav, Yogesh, Rohit and Aswin Conditions of congruent triangles Corresponding angles are equal. Corresponding…
