For the concave quadrilateral ABCD, explain why the sum of the measures of the interior angles is 360°. (HINT: Draw BD.)

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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For the concave quadrilateral ABCD,
explain why the sum of the measures of
the interior angles is 360°.
(HINT: Draw BD.)
Transcribed Image Text:For the concave quadrilateral ABCD, explain why the sum of the measures of the interior angles is 360°. (HINT: Draw BD.)
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