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Really need help with this.-example-1
User Lory Huz
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1 Answer

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Answer:

B = 47°

Explanation:

THe theorem to solve this is very simple. The angle created Angle B intercepts to arcs, one major, another minor.

The major arc is DE, 142 degrees.

The minor arc is AC, 48 degrees.

The two secants intersect outside the circle and creates a vertex angle, Angle B. The theorem tells us that the measure of that vertex angle would be ONE HALF of the difference of the two intercepted arcs. So, we have:


B=(1)/(2)(142-48)=47

So, B = 47°

User Sandeep Thomas
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