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Mathematics, 25.08.2021 22:40 cggvbfbvrcf

Please help!!! Lines BC and ED are parallel. They are intersected by transversal AE, in which point B lies between points and E. They are also intersected by transversal EC. Angle ABC measures 70 degrees. Angle CED measures 30 degrees.

Given: line BC is parallel to line ED

m∠ABC = 70°

m∠CED = 30°

Prove:m∠BEC = 40°

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

Pictures down below


Please help!!!

Lines BC and ED are parallel. They are intersected by transversal AE, in which poi
Please help!!!

Lines BC and ED are parallel. They are intersected by transversal AE, in which poi

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Answers: 1

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