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Geometry

A chord is a segment with both endpoints on a circle.

A diameter is a chord that passes through the center of a circle.

A tangent to a circle is a line, line segment, or ray that intersects a circle at exactly 1 point, called the point of tangency, and contains no point inside the circle.

A secant is a line or ray that intersects a circle at exactly 2 points.

How can Similarity Transformations be used to prove that all circles are similar?

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