Answer: x = 25
Step-by-step explanation:
A square on an angle basically means that the angle is 90 degrees in total.
But your angle is divided up into 2 sections.
The one you need to find is x, and the known angle, 65.
You basically have 65 + x = 90 because those 2 angles have to equal 90 degrees.
When you solve for x, subtract 65 on both sides and you get x = 25.