Question

In triangle ABC angle A =30° find angle B if it is 5 times angle C and find angle C

Answer 1

Angle C=5 times angleB
thus
30+6B=180(angle sum prop of triangle
6B=150
B=25 thus angle C is 5*25=125

Answer 2

Let angle C be x
Let angle B be 5x
Angle A= 30 degrees

By angle sum property
30+5x+x= 180
6x= 150
X=150/6
X=25