The central and inscribed corners rest on the same arc. Find their degree measures if the center angle is 50
February 9, 2021 | education
| The central and inscribed corners rest on the same arc. Find their degree measures if the center angle is 50 degrees greater than the inscribed one.
We know that:
angle ABC = 1/2 arc AC;
angle AOC = arc AC;
This way we can form an equation.
We get an equation of the following form:
arc AC – 50 = 1/2 arc AC;
2 arcs AC – 100 = arc AC;
arc AC = 100 ⇒ angle AOC = 100, angle ABC = 1/2 arc AC = 50;
Answer: angle AOC = 100, angle ABC = 50.
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