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∠ AED is formed inside a circle by two intersecting chords. If minor arc BD = 70° and arc CA = 170° , what is the measure of ∠ AEC? A)120 B)240 C)70 D)100

∠ AED is formed inside a circle by two intersecting chords. If minor arc BD = 70° and arc CA = 170° , what is the measure of ∠ AEC? A)120 B)240 C)70 D)100
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∠ AED is formed inside a circle by two intersecting chords. If minor arc BD = 70° and arc CA = 170° , what is the measure of ∠ AEC?

A)120
B)240
C)70
D)100

∠ AED is formed inside a circle by two intersecting chords. If minor arc BD = 70° and-example-1
User Vulovic Vukasin
by
7.7k points

1 Answer

5 votes

So

  • mCA=170°

And

  • mBD=70°

Now

  • 180-170=10°

From mBD

  • 70-10=60°

Now

m<AEC

  • 70+50=120°

Option A

User Dmitry Buzdin
by
8.3k points
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