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A secant intersects a circle at _ points.
A secant intersects a circle at 2 points.
The radius of a circle is ____ to the tangent.
The radius of a circle is perpendicular to the tangent.
If PQ = 4 cm and OQ = 5 cm, then find the radius of the tangent.
OP2 + PQ2 = OQ2 OP2 + 42 = 52 OP2 = 9 OP = r = 3 cm
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