Area OF triangle||Harmonic conjugate||Excentral division || illustration

Area of a triangle

Area OF Triangle || Quadrilateral || Centres OF Triangle

Geometric Progression ||Geometric Mean ||Harmonic Progression ||Harmonic Mean ,Illustration

Area of triangle by using integration

Harmonic conjugate & questions based on Harmonic Conjugate

Perimeter , Inradius OF Pedal triangle || regular polygon||M-N-theorem||Excentral triangle

Questions based on Equilateral triangle || Internal division & External division

Questions OF half angle formula || Centres OF Triangle ( Incentre , Circumcentre ) & Illustration

Geometrical Representation OF Complex number || Properties OF Triangle || Rotation OF complex no., Illustration