Given AB BD, ED 1 BD, ZABC LEDC Prove 2CBD s LCDB

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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4. Given ALBD, ED & BD, ZABC ZEDC
Prove ZCBD ZCDB
STATEMENTS
1. 40 L 85
ED L BD
1. LAND is a right angle
ZEDB is s right angle
nên
LEDB-90
4. m2ABC ZCBD
<-90"
MZEDC MACDB
<-90"
5. ZABC ZEDC
6. m2ABC m2KDC
7. mABC + mZCBD
MZEDC 2CDB
REASONS
8 m2EDC+ CRD
m2KDC m2CDB
9. MZCBD = mzCDB
10. ZCBD = ZCDB
Given
def of
congruence
Transcribed Image Text:4. Given ALBD, ED & BD, ZABC ZEDC Prove ZCBD ZCDB STATEMENTS 1. 40 L 85 ED L BD 1. LAND is a right angle ZEDB is s right angle nên LEDB-90 4. m2ABC ZCBD <-90" MZEDC MACDB <-90" 5. ZABC ZEDC 6. m2ABC m2KDC 7. mABC + mZCBD MZEDC 2CDB REASONS 8 m2EDC+ CRD m2KDC m2CDB 9. MZCBD = mzCDB 10. ZCBD = ZCDB Given def of congruence
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