Identify m∠ADB. Help PLEASE!
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Answer:
m<ADB = 25 degrees
Step-by-step explanation:
<ADB has two different intercepted arcs: AB and the unlabeled one that has a measure of 20. To find the actual measure of the angle, we must find the difference between these arcs and divide by 2.
70-20 = 50
50/2 = 25
Applying the angle of intersecting secants theorem, the measure of angle ADB in the diagram is: A. m∠ADB = 25°
When two secants meet at a point outside a circle, the measure of angle formed at that point is half the positive difference of the intercepted arcs, based on the angle of intersecting secants theorem.
m∠ADB = 1/2(70 - 20)
m∠ADB = 1/2(50)
m∠ADB = 25°
Learn more about the angle of intersecting secants theorem on:
https://brainly.com/question/1626547
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