P is a point on the bisector of ABC. If the line through P, parallel to BA meets BC at Q, prove that BPQ is an isosceles triangle.
Given : P is a point on the bisector ABC.
To prove:- BPQ is on an isosceles triangle
1 =
2 (
BP is bisector of
ABC)
1 =
3 (
PQ is parallel to BA)
2 =
3
PQ = BQ (If two angles are equal their opposite sides are also equal)
PBQ is on the isosceles triangle.
Hence proved.