in a triangle `ABC ,C=3B=2(A+B)` then find all the angles

If A(1, 4, 2), B(-2, 1, 2) and C(2, -3, 4) are the vertices of the triangle ABC, then find the angles of the triangle ABC.

In a triangle ABC,2/_A=3/_B=6/_C. Then the smallest angle in the Delta ABC is

the triangle ABC,3A=2B and 2A=C . find the angles of the triangle

Delta ABC,/_C=3,/_B=2(/_A+/_B) Find the three angles.

In triangle ABC , if angle A = 3 angle B and angle C = 2 angle B . Find all the three angles of triangle ABC .

In a triangle ABC,a/b=2+sqrt(3) and /_C=60^(@) then angle A and B is

In a triangle ABC,a/b=2+sqrt(3) and /_C=60^(@) then angle A and B is

In the triangle ABC, if a=5, b=7 and c=3, find the angle B and the circumradius R.