say
a = 3
b = 4
c = 1
find one with law of cosines
c^2 = a^2 + b^2 - 2 a b cos C
1 = 9 + 16 - 24 cos C
24 cos C = 24
cos C = 1
C =0
This is not a triangle. It is a straight line because a+c = b
Q6. In a triangle if 4LA=3LB=12LC, find all the angles.
1 answer