Given: Triangle ABC Bisectors of angles A and C intersect and form an angle =130∘ Find angle B Formula used: Angle between bisectors of A and C inside triangle =90∘+B∕2
Calculations: Given, angle between bisectors =130∘ Using formula: 90+B∕2=130 ⇒B∕2=130−90 ⇒B∕2=40 ⇒B=80∘
