Angle q is right angle so you would first do 12+90=102 then you would do 180-102=78 so x=78
x ∘ = 7 8 ∘ ;
The value of x in the triangle OQP, where PQ is a tangent and OQ is a radius, is 78 degrees. This is derived using the property that the angle between a radius and a tangent is 90 degrees. By applying the triangle sum theorem, we find that x equals 78 degrees.
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