Mathematics, 09.07.2020 04:01 andrejr0330jr
Statement Justification line BC is parallel to line ED Given m∠ABC = 70° Given m∠CED = 30° Given m∠ABC = m∠BED Corresponding Angles Theorem m∠BEC + 30° = 70° Substitution Property of Equality m∠BEC = 40° Subtraction Property of Equality Which of the following accurately completes the missing statement and justification of the two-column proof? m∠BEC + m∠CED = m∠BED; Definition of a Linear Pair m∠ABC + m∠BEC = m∠BED; Angle Addition Postulate m∠ABC + m∠BEC = m∠BED; Definition of a Linear Pair m∠BEC + m∠CED = m∠BED; Angle Addition Postulate
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Statement Justification line BC is parallel to line ED Given m∠ABC = 70° Given m∠CED = 30° Given m∠A...
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