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3 years ago

Geometry help please? 4 questions. Thanks!

Mathematics

1 answer:

wel3 years ago

7 0

Question 1:

Statement Reasons
m∠ABD + m∠DBC = m∠ABC Angle addition postulate
60° + 40° = m∠ABC Substitution Property of equality
100° = m∠ABC Simplpifying
∠ABC is an obtuse angle Definition of obtuse angle

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Question 2:

Statement Reasons
AC = BD Given
AC = BC + BD Segment addition postulate
AB + BC = BC + CD Addition property of equality

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Question 3:

Angle congruence postulate

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Question 4:

Segment congruence postulate

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Step-by-step explanation:

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