What is the radian measure of an angle subtending an arc of length equal to the radius?
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What is the result of adding vector A with components (-3, 7) to vector B with components (10, -4)?
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Math Question: Given two triangles ABC and DEF, if angle A is congruent to angle D, angle B is congruent to angle E, and segment AB is congruent to segment DE, what can we conclude about triangles ABC and DEF?