In mathematics, how is a tangent different from a chord explain?

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A tangent is a line that touches a curve at one point and a chord is a line that touches two points on a curve. A tangent is a straight line that touches a curve at one point, but does not intersect the curve at any other point. This means that it is a limiting case of a secant (a line segment that intersects a curve at two points). A chord is a straight line segment that intersects a curve in two distinct points.