﻿ 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
, 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

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