AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that:- AD bisects BC

AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that:- AD bisects angle A .

AD is an altitude of an isosceles triangle ABCD which AB=AC. Show that AD bisects angleA

In Fig., E is a point on side CB produced of an isosceles triangle ABC with AB = AC. If AD bot BC and EF bot AC, prove that triangleABD ~ triangle ECF. .

In the fig. traingleABC is an isosceles triangle in which AB=AC and AE bisects angleCAD . Prove that AE||BC

ABC is an isosceles triangle in which AB = AC. AD bisects exterior angle PAC and CD || AB (see Fig. 8.14). Show that (i) angle DAC = angle BCA and (ii) ABCD is a parallelogram.

ABC is an isosceles triangle with AB=AC draw APbotBC to show that angleB=angleC

Bisectors of the angles B and C of an isosceles triangle with ABC with AB=AC intersect each other at O. show that the external angle adjacent to angleABC is equal to angleBOC .

ABC is an isosceles triangle with AB = AC.Take a trace-copy of ABC and also name it as ABC. Is angleB = angleC ? Why or why not?

ABC is an isosceles triangle in which AB = AC. If D and E are the mid-points of AB and respectively, prove that B,C,D and E are concyclic.