Question

AD is an altitude of an isosceles triangle ABC in which AB =AC show that

(I)AD bisects BC (II) AD bisects angle A.​

Answer 1

Answer:

Step-by-step explanation:

triangle BAD and CAD

AB=AC (given)

angle B = angle C

angle ADB= angle ADC( 90)

so triangle BAD congruent to CAD

(i) BD = CD (CPCT) so AD is a bisector of BC

(ii) angle BAD = angle CAD(CPCT) so AD bisects angle A.​