Answer:
Can u show the whole question!
Since the wires are going to make an X, if one angle is 72 deg, then you know the angle directly opposite to it is also 72 deg. Looking at a single side of the x, you see there is a total 180 deg angle (72 + unknown angle), so the unknown angle is 180 - 72, and the angle directly opposite to it will be the same.
To find the answer you have to use pythagorean theorem;
a² + b² = c² where a and b are the legs and c is the hypotenuse.
5² + 15² = c²
25 + 225 = c²
250 = c²
√250 = √c²
√250 = c
hope this helps, God bless!
