Given AB LBD, ED & BD, ZABC = ZEDC Prove ZCBD 2CDB STATEMENTS 1. 38.80 20130 2. ZARD is right ample ZEDB is right angle 3. ABD 90° MZEDB-90 4. MEABC + CBD 90° MEEDCMECDB <<-90° 5. ZABC EDC & MABC - MEDC 7. LABC MECBD -MEEDC #CDB & MEDC+ CBD REASONS - MEDC m/CDB 9. MZCBD= mzCDB 10, ZCBD & LCDB Given def of congrience

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 2CBD s ZCDB
STATEMENTS
1. 40 L 85
ED L BD
2. LAND is a right angle
ZEDB is s right angle
nên
LEDB-90
4. m2ABC CBD
<-90"
MZEDC MCDB
<-90"
5. ZAC ZEDC
6. m2ABC m2KDC
7. m2ABC mZCBD
MZED ZCDB
REASONS
8 m2EDC+ CRD
m2KDC m2CDB
9. MZCBD m2CDB
10. ZCBD = ZCDB
Given
def of
congruence
Transcribed Image Text:4. Given ALBD, ED & BD, ZABC ZEDC Prove 2CBD s ZCDB STATEMENTS 1. 40 L 85 ED L BD 2. LAND is a right angle ZEDB is s right angle nên LEDB-90 4. m2ABC CBD <-90" MZEDC MCDB <-90" 5. ZAC ZEDC 6. m2ABC m2KDC 7. m2ABC mZCBD MZED ZCDB REASONS 8 m2EDC+ CRD m2KDC m2CDB 9. MZCBD m2CDB 10. ZCBD = ZCDB Given def of congruence
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