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   Home Sitemap Geometry Problems All problems Parallel Visual Index 551-560 Post a comment or solution        By Antonio Gutierrez
Problem 553: Quadrilateral, Angles, Sum
Level: High School, College, Math Education

The figure shows a quadrilateral ABCD with angles a, b, c, and d. Prove that a + c = b + d.
 

Quadrilateral, Angle, Sums
 
 

 

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