1.

the bisectors of ZB and Z C intersecte ABC, with AB = AC, the bisectorsShow that:isosceles triangle ABCher at O. Join A to O. Show that .other areOB=0CABC AD IST(ii) AO bisects ZAAD is the perpendicular bisector of BC730). Show that A ABC is an isosceleser Fje 7.30). Showde in which AB=AC.

Answer»

2 question answer:AD = AD (common)angle ADB = angle ADC (90 degree given)angle BAD = angle CAD (AD bisects angle A)So, Triangle BDA congruent to Triangle ADC by ASA congruence rule.AB = AC (CPCT)Triangle ABC is an isosceles Triangle



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