CONTENTS Important Results 1.1 Standard Results - I 1.2 Standard Results - II 1.3 m-n Theorem 1.4 Regular n sides Polygon 1.5 More Results 1.5.1 Distance of orthocentre from vertices of triangle 1.5.2 Distance of orthocentre from sides of triangle 1.5.3 Distance of circumcentre O from sides : 1.6 Pedal Triangle 1.7 Important Theorem 1.8 Ambiguous Case IN-CHAPTER EXERCISE - A THINGS TO REMEMBER