# Past Exam #1 Solutions - M TH/SLS2 18-6816 xam1 E 2...

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MTH/SLS 218-6816Exam 1February27,2008ProfessorIlya Kofmant , /NAMEzl-ql(^Problem1. Consider an equilateral AABC.A person begins walking straight at\'{'point /, turns at B and then at C,and returns to A but does not turn. What isthe total number of degreesthat the walker has turned? Justify your answer.
Problem2. (")If a pyramid has a 100-gonfor its base, how many vertices, edgesand faces doesit have?/oI:/o/
(b)If a pyramid has 14 edges, how many faces doesit have?= g=Z-L>L
Problem3. What fact about intersecting spheresenablesthree GPS satellitesdetermine your exact location on Earth?to{*tl4-

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Math, Trigraph, nd m oon, hat f act, nd p olygons, nd r hombi, olidsa nd