The Measure Of (Arc)XY is 94*. What is the measure of XYZ, The Tangent-chord Angle?
2 answers:
Answer:
Option A. 47°
Step-by-step explanation:
Since m(Arc)XY = 94°
Therefore angle at the center = 94°
Now in triangle formed at the center
∠XOY = 94°
Now ∠OXY+∠XYO = 180 - ∠YOX = 180 - 94 = 86
and we know ∠OXY = ∠XYO
therefore ∠XYO = 86/2 = 43°
Now ∠XYO + ∠XYZ = 90°
∠XYZ = 90 - ∠XYO = 90 - 43 = 47°
Option A 47° is the answer.
Hello,
The tangent-chord angle is the half of the center angle
==>94°/2=47°
Answer A
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