7.) What is the tangent to a circle conjecture?
A tangent line of a circle is any line that intersects the circle in ONLY one point. These lines "just touch" the circle without traveling inside. A line that intersects a circle through two points is a secant line. Chords of circles lie on secant lines.
The precise statement of this conjecture is:
Tangent Conjecture I: Any tangent line to a circle is perpendicular to the radius drawn to the point of tangency. (top picture)
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