If the angle between the wires supporting the street lamp is reduced to 90 degrees, what is the tension in...?

Question

A street lamp weighs 150 N. It is supported by two wires that form an angle of 120.0 degrees with each other. The tensions in the wires are equal.

If the angle between the wires supporting the street lamp is reduced to 90 degrees, what is the tension in each wire.

Please help I need help.
I don't understand it.

Answer 1

150/2 = T * sin (45)
therefore T = 75/sin(45) = 88.1416022