a) Ignoring the congruency notation, x should be 19*(root 2), assuming that the triangle is on the 2D plane.
b) Ignoring the right angle, x = 19 if the triangle is on the 2D plane.
c) If the object is in 3D, and if the 2 sides of 19 project into the blackboard, and if x is the length of the projection of the hypotenuse onto the 2D blackboard plane, then x could be 19.
d) If both the right angle and congruency is held true, then this object fails to be a true, closed polygon on any plane, and the drawing is incorrect.>>9816146
e) That could be the case where we should not treat the lines as a geometric system, but rather separate lines.
i) But by the physical drawing of the hypotenuse with all 3 lines on the same plane, x =/= 19.
ii) If x = 19, then this could be where the hypotenuse is at a distance in 3D, and x is the projection of the faraway line onto the blackboard plane.
Somebody screwed up. I'm waiting for my True Tears sub, /a/. Noe is not amused.