The product of the measures of the secant segment and its external secant segment. The value of x using the secant tangent theorem is 10
What are secant tangent theorem?
It states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, the square of the measures is equal to the product of the measures of the secant segment and its external secant segment. Mathematically;
(x + 8)*(8) = 12²
Simplify for the value of x
8x + 64 = 144
8x = 144 - 64
8x = 80
x = 80/8
x = 10
Hence the value of x using the secant tangent theorem is 10
Learn more on secant tangent theorem here: https://brainly.com/question/26826991
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