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Find the angle measure A.

Find the angle measure A.-example-1
User DigTheDoug
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1 Answer

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Answer:

∠ A = 42°

Explanation:

an inscribed angle is an angle whose vertex lies on the circle and whose sides are two chords of the circle.

The measure of an inscribed angle is half the measure of its intercepted arc.

∠ A is an inscribed angle , then

∠ A =
(1)/(2) BC =
(1)/(2) × 84° = 42°

User Dheeraj Thedijje
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6.4k points