What is the measure of angle C in an isosceles triangle with angle A = 30°, angle B = 50°?
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Question: Find the maximum value of f(x) = cos x in the interval [-π, π].
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What is the length of the perpendicular bisector of a side of a triangle if the side length is 10 units and the other two sides have lengths of 8 and 6 units, respectively?