Step-by-step explanation:
If two lines are mutually perpendicular and going across each other then they will form maximum FOUR 90° angles.
AB is perpendicular to CD. So, FOUR 90° angles will be formed by their intersection.
Answer:
x=3
(x−3)^2=0
Set the x−3 equal to 0.
x−3=0
Add 3 to both sides of the equation.
the angle between the known sides is not right angle
