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Calculus1 8 Online
OpenStudy (anonymous):

Suppose a triangle has sides a, b, and c, and that a2 + b2 > c2. Let be the measure of the angle opposite the side of length c. Which of the following must be true? Check all that apply. (Points : 3) cos > 0 The triangle is a right triangle. The triangle is not a right triangle. is an acute angle.

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