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Need help thanks!! Don't know how to solve problem

Need help thanks!! Don't know how to solve problem-example-1
User Ruzin
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1 Answer

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The measure of the angle formed by 2 chords that intersect inside the circle is 1/2 the sum of the chords' intercepted arcs.

(83 + x)/2 = 107
83 + x = 107 * 2
83 + x = 214
x = 214 - 83
x = 131°

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