Archaeologist Ertha Diggs has uncovered one stone that appears to be a voussoir from a
Chapter 5, Problem 16(choose chapter or problem)
Archaeologist Ertha Diggs has uncovered one stone that appears to be a voussoir from a semicircular stone arch. On each isosceles trapezoidal face, the obtuse angles measure 96. Assuming all the stones were identical, how many stones were in the original arch?
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