the side BC of triangle abc is produced such that D is on the ray BC the bisector of /_A meets BC IN L prove that angle abc+angle acd =2angle ALC
the side BC of triangle abc is produced such that D is on the ray BC the bisector of /_A meets BC IN L prove that angle abc+angle acd =2angle ALC
Q.37. If one angle of a triangle is 110, then the angle between the bisectors of exterior angles of the two angles is:
(A) 55
(B) 65
(C) 45
(D) 35
Q.13. In figure, AD = BD. Prove that BD < AC.
9. ABC is a triangle in which B=2C. D is a point on BC such that AD bisects BAC and AB=CD. Prove that BAC=72o.
(1) Obtuse-angled triangle
(2) Scalene triangle
(3) Isosceles right-angled triangle
(4) Equilateral triangle