From external point P, two secant lines are drawn to the circle. The far arc (farther intercepted arc) measures 130°, and the near arc (closer intercepted arc) measures 40°. What is the measure of the angle at P?
A85.0°
B90°
C45.0°
D65.0°
Explanation
For two secants from an external point, the angle equals HALF the DIFFERENCE of the intercepted arcs: (130−40)/2 = 45.0°.
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