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Find angle x.

 

 Feb 19, 2021
 #1
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Triangle CEO is an isosceles triangle and angle x = 80 degrees.

 Feb 19, 2021
 #2
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Proof of it being an isosceles triangle besides it just looking like one?

Guest Feb 19, 2021
 #3
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I have drawn that to scale 1:1 and found that angle x is 80 degrees. That proves that the triangle CEO is an isosceles triangle!!! 

Guest Feb 19, 2021
 #4
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....but how do you know the image is drawn to scale????

 Feb 19, 2021

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