AC is tangent to circle O at A. If mBY =24, what is m

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asked Jul 6, 2019 177k views

1 Answer

Ryan Giglio · Answer 1 · 2019-07-13T04:45:08+0000

the correct question in the attached figure

we know that
the inscribed angle measures half of the arc it comprises.
then
m∠YAB=(1/2)*m∠BY-------------> m∠YAB=(1/2)*24°=12°
m∠YAC=90°-m∠YAB=90°-12°=78°

the answer is the option C) 78°

AC is tangent to circle O at A. If mBY =24, what is m-example-1

AC is tangent to circle O at A. If mBY =24, what is m

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