Answer:
x = 6°
Step-by-step explanation:
a square has 4 right angles, and the lines on the lines dividing the angles show that the lines are congruent, meaning that all of the right angles are being divided in half. If one right angle is equal to 90° that means that you have to set the equation equal to 45° (half of 90°) to find x.
7x + 3 = 45°
-3 -3
7x/7 = 42°/7
x = 6°
hope this helps!
