Question

If AD is an altitude of an isosceles triangle ABC in which AB = AC. Then:

Answer 1

Answer:

∠B=∠C

Step-by-step explanation:

RULE: IN A ISOSCELES TRIANGLE , THE ANGLE OPPOSITE TO EQUAL SIDES ARE EQUAL.

Answer 2

in triangle AD B and triangle ADC

AD common in both

AB= AC given

angle ADB = angle ADC

by congruency rule SAS

triangle AD B = triangle ADC

by corresponding part of congruent triangle

/B = /C