Question

What is the value of x? Assume that the line is tangent to the circle.

90


145


45


70

Answer 1

The answer is 90 Degrees

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Answer 2

A line tangent to a circle is always perpendicular to the radius or the diameter to the circle. Since angle x has been formed by the intersection of the tangent line and the diameter of the circle the we can conclude that the the angle formed is:
x°=90°
Answer: A] 90°