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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Transcribed Image Text:8. **Given:** \( BM = DM \), \( AM = CM \)
**Prove:** Quadrilateral \( ABCD \) is a parallelogram.
*Diagram Description:*
A quadrilateral \( ABCD \) is shown with diagonals \( AC \) and \( BD \) intersecting at point \( M \). Segments \( BM \) and \( DM \) are marked as equal, and segments \( AM \) and \( CM \) are marked as equal.
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9. **Given:** \( AB = CD \) and \( BC = AD \)
**Prove:** Quadrilateral \( ABCD \) is a parallelogram.
*Diagram Description:*
A quadrilateral \( ABCD \) is drawn with opposite sides \( AB \) and \( CD \) marked as equal, as well as \( BC \) and \( AD \) marked as equal.
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10. **Given:** Quadrilateral \( MARN \) is a parallelogram.
**Prove:** \( \angle MAR = \angle RNM \) and \( \angle ARN = \angle NMA \)
*Diagram Description:*
A parallelogram \( MARN \) is shown. The task is to prove the equality of angles \( \angle MAR \) with \( \angle RNM \) and \( \angle ARN \) with \( \angle NMA \).
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