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No, a secant line does not pass through the center of a circle. A secant line is a line that intersects a circle in two distinct points. Only a line passing through the center of a circle is called a diameter.
A line that goes through a circle is a secant line. (Remember that a line is infinitely long.) Anyline that passes through a circle is a secant line, whether it passes through the center of the circle or not. Compare this to a line segment with endpoints on the circumference of a circle. That segment is called a cord of that circle. If the cord of a circle passes through the center of that circle, it is a diameter of that circle, which is the longest cord of the circle.
The tangent secant angle is the angle between the tangent to a circle and the secant, when the latter is extended.
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There are five parts of a circle. They are-1.Radius: It is the parts of the circle that be defined as the distance between the center of the cirlce and a point on the circle.2.Diameter: It is the parts of the circle that be defined as the distance between the two point on the circle which cross through the center of the circle. Note: Every diameter of a circle is a chord; however, not every chord is a diameter. Whether a chord passes through the center determines if it is or is not the diameter.3.Chord: It is the parts of the circle that be defined as the line whose end points are on the circle.4.Secant Line: This line intersects the circle exactly at two points.5.Tangent Line: This line intersects the circle on the point.Thus we can define parts of a circle.