If a line is a tangent to a circle then it is perpendicular to the radius passing through the point of contact. Watching: What is a Tangent

The theory of signs to recognize the tangent of a circle

1. Properties of tangent

If a line is a tangent to a circle then it is perpendicular to the radius passing through the point of contact.

In the figure above a is the tangent to the circle ((O).)

(Rightarrow aperp OH) at (H) (with H being the contact).

See also: What is Trade Off – Meaning of the word Trade

2. Tangent identification sign

If a line passes through a point of a circle and is perpendicular to the radius passing through that point, then the line is tangent to the circle.

See also: Rikvip – Download Rikvip Apk, Ios, Pc

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