Question

In triangle ABC, angle b is 110 and angle Ais angle b/2 then value of angle c is =?

Answer 1

Angle B... 110°
Angle A.. B/2.. 110/2.. 55°
Sum of all angles of the triangle is 180°...
Angle A + Angle B + Angle C= 180°
55° + 110° + Angle C = 180°
165° + Angle C = 180°
Angle C = 180° - 165°
Angle C = 15°..
Value of Angle C = 15°..
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Answer 2

angle a is b/2 which is equal to 110/2 =55 degree
a+b+c = 180 degree as the sum of angles of a triangles is 180 degree
then 110+55+c=180therefore angle c=180-(110+55)=180-165=15degree