1. Which of the following is not true about the unit circle? A. The circumference of a unit circle is 2n. B. The area of a unit circle is 12. C. The equation of a unit circle is x2 + y2 = 1. D. The radius of a unit circle is 1. 2. Which of the following is always true about a reference angle? A. A reference angle may be negative. B A reference anglo onr

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A: Given that:

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A: Here, we will simply use the formula of area of triangle to find the required answer

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