" In a "/_ABC," the exterior "/_A" is greater than twice the "/_C" .Prove that "AC>AB" ."

In a Delta ABC, the exterior /_A is greater than twice the /_C. Prove that AC>AB.

In a triangle exterior angle is always greater than :

Delta ABC is a right triangle right angled at A such that AB=AC and bisector of /_C intersects the side AB at D.Prove that AC+AD=BC .

In a Delta ABC, the bisectors of ext /_B and ext /_C meet at D. If BD>CD, then prove that AC>AB.

In a ABC,AD bisects /_A and /_C>/_B Prove that /_ADB>/_ADC .

In Delta ABC,AB=AC and the bisectors of /_B and /_C meet at a point O. Prove that BO=CO and the ray AO is the bisector of /_A.

ABC is a triangle.The bisector of the exterior angle at B and the bisector of /_C intersect each other at D. Prove that /_D=(1)/(2)/_A

In Figure,it is given that /_A=/_C and AB=BC .Prove that ABD~=CBE

ABC is a right triangle such that AB=AC and bisector of angle C intersects the side AB at D. prove that AC+AD=BC.

In triangle ABC, side AC is greater than side AB. If the internal bisector of angle A meets the opposite side at point D, prove that : angleADC is greater than angleADB .