Answer:
B
Step-by-step explanation:
B cause
Answer:
X = 20
Step-by-step explanation:
Hope this helps! If you need the explanation, let me know. Pls give brainliest!
(You copied 'upper left' twice, and you left out 'lower right'.
But we know what you mean.)
If those are the corners of the wall, then they're ALL in the plane of
the wall (coplanar with it).
