Math question: What is the sum of cubes a^3 + b^3 if a, b, and c are positive integers satisfying Fermat's theorem for n=3, and c is the hypotenuse of a right-angled triangle?
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What is the measure of the third angle of a triangle if the other two angles measure 45° and 75°?
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What is the measure of the central angle subtended by an arc of length 120 units in a circle with radius 10 units?