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The value of x
(sh.itjust.works)
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this post was submitted on 08 Oct 2024
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I think 125
135, that's not a 90 degree angle in the problem. Just visually.
You are right that is 80° so the value of x will be 135°
Oh that's just a cheap trick. You are right, it's 80 degrees despite looking like 90 degrees.
Nah, the imagery tricks you. 180 degrees to a line. 180 degrees inside a triangle.
So you can gather the inside unlabeled angle on the triangle on the left is only 80 degrees: (180-[60+40])
So you then know it's 100 on the right side of that +35 leaves you with 45 degrees left for the top of the right one.
180-45=. 135 degrees
Also if you add up all visible angles you get 135, so I'm sold on that alone. No no no, I won't hear any rebuttals.