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OpenStudy (anonymous):
the second angle of a triangle is 4 times as large as the first. the third angle is 80
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OpenStudy (anonymous):
80+x+4x =180 5x = 100 x=?
Directrix (directrix):
Continuing from above: 5x = 100 x = 20 Angles are 20, 80, and 80.
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