Mathematics
Mathematics, 18.10.2019 06:30, sallonquarts

Iwill award

given: ac = ab, cd = de
m∠abc = 70°, m∠ ecb = 35°

prove: de ║bc

m∠acb = m∠ by reason ( base angles theorem, exterior angle theorem, supplementary angles, vertical angles theorem ) - choose one


Iwill award  given: ac = ab, cd = de m∠abc = 70°, m∠ ecb = 35°  pro

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Iwill award

given: ac = ab, cd = de
m∠abc = 70°, m∠ ecb = 35°

pro...

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