Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN: 9781337614085
Author: Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher: Cengage,
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Question
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find the missing triangle proof
Given: AB E CB and DB bisects ZABC.
Prove: ZA 2 ZC.
Step
Statement
Reason
AB CB
Given
1
DB bisects LABC
ZABD LCBD
An angle bisector divides an angle into two congruent angles
Type of Statement
AABD E ACBD
SAS
4
Corresponding Parts of Congruent Triangles are Congruent
(СРСТC)
ZA ZC
B
A
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Transcribed Image Text:Given: AB E CB and DB bisects ZABC. Prove: ZA 2 ZC. Step Statement Reason AB CB Given 1 DB bisects LABC ZABD LCBD An angle bisector divides an angle into two congruent angles Type of Statement AABD E ACBD SAS 4 Corresponding Parts of Congruent Triangles are Congruent (СРСТC) ZA ZC B A
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