1 50° 1. Calculate the length of segment AB. 2. How does the length of segment AB relate to the tangent of 50 degrees? 3. Why is this true? 4. In right triangle trigonometry, "tangent" is defined in terms of side ratios. Write another definition of tangent (in the sense of a numerical value, not a line) in terms of a circle with radius 1 unit.

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