proof
☼ Results on similarity & Congruence of triangles :–
■ If the area of two similar triangles are equal, then the triangles are congruent.
■ Every congruent triangle is a similar triangle.
■ Every similar triangle m…
☼ Concept of Congruent and Similar :–
■ Congruent Figures : –
Figures having the same shape, same measures and same areas are called congruent figures…
☼ Some Special Type of Centers :–
■ Altitude & Orthocenter :- The three altitudes of a triangle are concurrent. The point of concurrence of the altitudes of a triangle is called the orthocen…
☼ TRIANGLE : A triangle is a plane figure bounded by three straight lines ( called sides of a triangle ). A vertex of a triangle is a point where two straight lines meet. Thus, in a triangle there are three vertices. The symbol …
☼ PAIRS OF ANGLES :
■ Adjacent angles : Consider two angles BAC and CAD with the same vertex A and the arm AC common to them. Two such angles with the same vertex, one arm common are called adjacent …