Prove that ABCD is not a parallelogram. 8 7 6. 5 4 3 2 2 3 4 5 6 7 8 9 ABCD is not a parallelogram because although the slopes of BC and AD are both [ Select ] and represent parallel lines, the slope of AB is [ Select] and the slope of CD is [Select] Because the slopes of AB and CD are [Select] ~ , this proves that these two segments are not parallel. Therefore, ABCD cannot be a parallelogram if both pairs of opposite sides are not parallel.
Prove that ABCD is not a parallelogram. 8 7 6. 5 4 3 2 2 3 4 5 6 7 8 9 ABCD is not a parallelogram because although the slopes of BC and AD are both [ Select ] and represent parallel lines, the slope of AB is [ Select] and the slope of CD is [Select] Because the slopes of AB and CD are [Select] ~ , this proves that these two segments are not parallel. Therefore, ABCD cannot be a parallelogram if both pairs of opposite sides are not parallel.
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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![Prove that A BCD is not a parallelogram.
8
7
B
5
4.
1
1 2 3 4 5 6 7 8 9 X
ABCD is not a parallelogram because although the slopes of BC and AD are both
[ Select ]
and represent parallel lines, the slope of AB is
[ Select ]
v and the slope of CD is [Select]
Because the slopes of AB and CD are [Select]
this proves that
these two segments are not parallel. Therefore, ABCD cannot be a parallelogram if
both pairs of opposite sides are not parallel.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc3ae1e16-4ed1-4d6c-8aa5-db5054b17ed7%2Fb59f7f9c-c7a4-49ab-931a-2706751fafac%2Fyi1k9i9_processed.png&w=3840&q=75)
Transcribed Image Text:Prove that A BCD is not a parallelogram.
8
7
B
5
4.
1
1 2 3 4 5 6 7 8 9 X
ABCD is not a parallelogram because although the slopes of BC and AD are both
[ Select ]
and represent parallel lines, the slope of AB is
[ Select ]
v and the slope of CD is [Select]
Because the slopes of AB and CD are [Select]
this proves that
these two segments are not parallel. Therefore, ABCD cannot be a parallelogram if
both pairs of opposite sides are not parallel.
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