In a triangle ABC, internal bisector of angle A meets B... – Geometry

Geometryhard · Past Paper

In a triangle ABC, internal bisector of angle A meets BC at D. If AD is also perpendicular to BC, the triangle is:

AScalene

BIsosceles

CObtuse

DRight-angled only

✓ Correct Answer: B — Isosceles

If the angle bisector and altitude from the same vertex coincide, the triangle is isosceles (AB=AC).

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