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Mathematics 13 Online
OpenStudy (anonymous):

Suppose someone tells you that she has a triangle with sides having lengths 3.5, 4.5, and 5.5 yards. Is this a right triangle?

jimthompson5910 (jim_thompson5910):

if you can show that a^2 + b^2 = c^2 is true (c is the longest side), then it is a right triangle

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