Prove that a triangle AC is isosceles, if: (i) altitude AD bisects an

1.	Prove that a triangle AC is isosceles, if: (i) altitude AD bisects angle ∠ BAC, or (ii) bisector of angle BAC is perpendicular to base BC.
Answer» Prove that a triangle AC is isosceles, if: (i) altitude AD bisects angle $∠$ BAC, or (ii) bisector of angle BAC is perpendicular to base BC.

Prove that a triangle AC is isosceles, if: (i) altitude AD bisects angle ∠ BAC, or (ii) bisector of angle BAC is perpendicular to base BC.

Answer»

Prove that a triangle AC is isosceles, if:

(i) altitude AD bisects angle $∠$ BAC, or

(ii) bisector of angle BAC is perpendicular to base BC.