Question

in triangle abc angle a.in a triangle abc angle A is equals to 30 degrees Angle B is equals to 40 Degrees find angle C

Answer 1

Area of triangle = 180
A+B+C= 180
30+40+C=180
C=180-70
ANGLE C= 110 Degree

Answer 2

sum of the angles of all angles is 180°
so
angle A +angle B+ angle C= 180°
30°+40°+angle c= 180
70 +angle c=180
180-70=110 angle c =170°