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OpenStudy (anonymous):
I already got my answer but I don't want anyone to cheat so I took it away.
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OpenStudy (lucaz):
you're right, all angles should be less than 90 degrees
OpenStudy (lucaz):
the sum of the interior angles of any triangle is always 180° sou you have 50+50+x=180, solving of x you get x=180-100=80
OpenStudy (anonymous):
OH.... 0_0 So.... 50 + 50 = 100 - 180 = 80 <---- The answer?
OpenStudy (anonymous):
@lucaz
OpenStudy (lucaz):
180-100, yeah, 80°
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OpenStudy (anonymous):
Yay! :)
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