Question

a line intersecting a circle in two points it's called secant

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Answer 1

Answer:

We know that tangent is a line that intersects the circle at one point and is perpendicular to the radius of the circle. Thus, the line that intersects the circle at two points is secant. Hence, the line intersecting the circle at two points is secant

Answer 2

Answer:

A line intersecting in two points is called a secant line, in one point a tangent line and in no points an exterior line. A chord of a circle is the line segment that joins two distinct points of the circle. A chord is therefore contained in a unique secant line and each secant line determines a unique chord.