In a rhombus, each side has length $6.$ One of the angles of the rhombus is $120^\circ.$ Find the area of the rhombus.
Well draw a rhombus.
Draw the diagonals.
See how it forms four 30, 60, 90 triangles?
I will leave the rest up to you.
Do it yourself. Ya know how equilateral triagles work? Do that.
Clearly comes from AOPS, probably.
Lol probably true
This is AoPS homework, so someone is just trying to cheat.
When you see dollar signs, usually AOPS.