In Exercises 6–10, complete each statement about the diagram. Then state the definition, postulate, or theorem that justifies your answer. 6. m Z1 + m Z2 + im Z 3 = _ ? 7. m Z1 + m L4 = ? 18 8. m L1 + mZ2 = m L 2 9. If EC || BD, then 27 =? 3\5 10. If 22 = 23, then EC =

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
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In Exercises 6-10, complete each statement about the diagram. Then state the definition, postulate, or theorem that justifies your answer.

In Exercises 6–10, complete each statement about the diagram. Then state
the definition, postulate, or theorem that justifies your answer.
6. m Z1 + m Z2 + im Z 3 = _ ?
7. m Z1 + m L4 = ?
18
8. m L1 + mZ2 = m L 2
9. If EC || BD, then 27 =?
3\5
10. If 22 = 23, then EC =
Transcribed Image Text:In Exercises 6–10, complete each statement about the diagram. Then state the definition, postulate, or theorem that justifies your answer. 6. m Z1 + m Z2 + im Z 3 = _ ? 7. m Z1 + m L4 = ? 18 8. m L1 + mZ2 = m L 2 9. If EC || BD, then 27 =? 3\5 10. If 22 = 23, then EC =
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