The Pythagorean theorem is a^2 + b^2 = c^2. You use it when solving for the sides of a triangle.
Yes!! the line AED is cut with a perpendicular line. The rule for perpendicular lines is that the angles made =90.
-This can also be proven by the fact that lines =180, 90+90=180
Your question seems incomplete
is there an image supposed to be attached to it
Substitute first Y for the second Y
So it would be x + x + 6 = -2
Then it would be 2x +6 = -2
Move the 6 over so it would be 2x =-8
Divide by 2 your answer is x = -4
X = 21 + 34
Answer: x = 55°
