solort811 solort811

13-12-2019
Mathematics

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O is the center of the circle.Assume that lines that appear to be tangent. What is the value of x?

O is the center of the circleAssume that lines that appear to be tangent What is the value of x class=

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happyend happyend

13-12-2019

So line QP is the tangent which means angle Q is 90 degrees. All three angles of a triangle added together is 180 degrees so:
x = 180 - 90 - 12
x = 78

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