AMC 10 Step by Step
2007 AMC 10BProblem 7P1-10~3 minPrint

All sides of the convex pentagon ABCDEABCDE are of equal length, and A=B=90.\angle A= \angle B = 90^\circ. What is the degree measure of E?\angle E?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.