Math question: Find the measure of angle XYZ if the angle bisector splits it into two angles measuring 60 degrees and 30 degrees.
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Math question: In triangle ABC, the angle bisector of angle A intersects side BC at point D. If angle BAD = 30° and angle ACD = 40°, what is the measure of angle BAC?
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What are the components of vector v = 3i - 4j + 5k?