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Find the measure of the arc or angle indicated.

Assume that lines which appear tangent are tangent.

Find the measure of the arc or angle indicated. Assume that lines which appear tangent-example-1
User Areg
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1 Answer

3 votes

Answer:

Recall that the angle formed by two tangents is half the difference of the intercepted arc.

Multiply through by 2 to get:

26x+20=49x+10-180+13x+10

Group similar terms to get:

26x-13x-49x=10-180+10-20

-36x=-180

x=5

Explanation:

User Cprcrack
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