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Mathematics, 16.07.2019 03:20 roofroofmom

If isosceles triangle abc has a 130° angle at vertex b, which statement must be true?
mza = 15° and mc = 35°
mza + m2b = 155°
mza + m2 = 60°
mza = 20° and m_c = 30°
a

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If isosceles triangle abc has a 130° angle at vertex b, which statement must be true?
mza = 1...
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