what is a chord and a tangent
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A line intersecting a circle in two places is referred to as a secant. The portion of the secant contained within the circle is called a chord. If a line intersects a circle at only a single point, it is called a tangent. The point at which it intersects with the circle is referred to as the point of tangency.
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chord is a-line whose end points lies on circle.but it doesn't passes through centre.tagent is a line which touches circle at one point only.it is perpendicular to the radius.
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