In what ratio are the sides of a triangle if one of the angles is 120° and the sides of the triangle make up a arethmetic sequence..
so we have 3 sides:
a = a
b = a +d
c = a +2d
and one of the angles is 120° = angle between a and a+d (the shortest sides)..
i tried a lot of things but i couldnt find a way to get the right result. =(