To proof: The DEBF is a parallelogram.
Explanation of Solution
Given:
The parallelogram is shown below:
DE and BF are perpendicular to AC .
Calculation:
Consider in
Consider in triangles EBF and FDE .
Thus, The DEBF is a parallelogram as opposite sides are equal.
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- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning