Applying the tangent theorem, the length of PX in the circle is: B. 13 cm.
What is the Tangent Theorem?
The tangent theorem states that a right angle is formed at the point where the tangent meets with the radius of a circle on the circle's circumference.
Based on the tangent theorem, triangle PYX is a right triangle. Use Pythagorean theorem to find PX.
PX = √(12² + 5²)
PX = 13 cm.
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