Chapter – 7 Congruence of Triangles SSS Congruence of two triangles: Under a given correspondence, two triangles are congruent if the...

Chapter –6 The Triangle and its Properties Triangles: A closed plane figure bounded by three linesegments. The six elements of a triangle...

Class 7 Important Formulas Chapter 5– Lines and Angles We recall that (i) A line-segment has two end points. (ii) A ray has only one...