Remote interior angles & Exterior angle of triangle theorems

Pythagorean triplets, properties of similar triangles

Factors of a³ – b³, Rational algebraic expressions

Operations on surds & rationalization

Application of quadratic equations

Factors of quadratic trinomial

Irrational numbers and surds

Formula method and nature of roots of quadratic equations.

Expansion of cube of (a - b ) and square of ( a + b + c )

Introduction and properties of rational numbers