20. Betina draws five points
畦,
稽,
系,
経 and
継 on a circle as well as the tangent to
the circle at
畦, such that all five angles marked with
捲 are equal. (Note that
the drawing is not to scale.) How large is the angle
乾
畦稽経 ?
(A) 66° (B) 70.5° (C) 72°
(D) 75° (E) 77.5°
Part C: Each correct answer is worth 5 points
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