Question

in a triangle abc angle C is equal to 3 angle b is equal to 2 a + b find the three angles ​

Answer 1

Answer:

In triangle ABC

A+B+C=180° ( Sum of angles of a triangle is 180°)

->A+B=180°-C

Now,

->C=2(A+B)

->C=2(180°-C)

->3C=360°

->C=120°

Now,

->C=3B

->120°=3B

->B=40°

Now,

->2(A+B)=C

->2A+2B=C

->2A+80°=120°

->2A=40°

->A=20°