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Mathematics 11 Online
OpenStudy (anonymous):

Suppose a triangle has sides a, b, and c, and that a^2 + b^2 < c^2. Let theta be the measure of the angle opposite the side of length c. Which of the following must be true? ***Choose ALL that apply!!!!*** A. cos theta < 0 B. The triangle is a right triangle. C. The triangle is not a right triangle. D. theta is an acute angle. ***my answer: A and C is that right? @jim_thompson5910 :) not 100% sure!! :D

OpenStudy (mathstudent55):

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