Question

In a triangle ABC angle A =60°, angle B=80°
and the bisectors of angle B and angle C meet at O.then angle BOC
°

Answer 1

Answer:

120°

Step-by-step explanation:

bisector of angle B is 40°

bisector of angle C is 20°

by applying angle sum property,

angle BOC= 180°-(40°+20°)

= 120°

Answer 2

Step-by-step explanation:

angleB=40° and angleA=60°

angle C =180-60+40

angle C =80°

angle B and angle C is bisected by BO and OC respectively.

angle OBC=40° and angle OCB=60/2=20°

in triangle BOC

angle OBC + angle OCB+angle O=180

60+angle OBC=180

angle OBC=180-60

angle BOC=120°