Question

11.ABC is a triangle .The bisector of the exterior angle at B and the bisector of angle C intersect each other at D. prove that angle D = 1/2 angle A​

Answer 1

Step-by-step explanation:

ABC is a triangle. BD is the interior angle bisector of ∠B and CD is the exterior angle bisector of ∠C. To prove that :- BDC =1/2 angle A. ... The bisector of the exterior angle at B and the bisector of angle C intersect each other at D.