Question

What is the value of x?
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Answer 1

x + 51 = 90

x = 90 - 51

x = 39°

Answer 2

x = 39

Explanation:

The angle between a tangent and the radius of a circle at the point of contact is 90° , then

x = 180 - (90 + 51) = 180 - 141 ← angle sum of triangle

x = 180 - 141 = 39