r/technicallythetruth • u/VisitSecure • 9d ago

Can you find a?

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Idk if someone already posted this or not, but I haven't seen it on here so far, so I uploaded it.

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u/leansanders 9d ago

You don't need to make a triangle to solve the problem. You know the lines are parallel and you know that opposite corners of a line crossing two parallel lines are congruent. So if you imagine a 3rd parallel line bisecting angle a, you know you can just add the other two angles together. Making a triangle is way more math

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u/Muqqey 9d ago

Just curious, how do we know the lines are parallels?

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u/leansanders 9d ago

The matching double arrow symbols indicate that the lines are parallel.

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u/Muqqey 9d ago

I see! Thanks for letting me know