Tangent properties - Circles

Tangent properties

A tangent to a circle must form a perpendicular line from the point of tangency to the center of the circle. In this lesson, we will learn how to use this property, along with others such as, chord properties, to solve questions.


  • 1.

    Tangent properties and angles in a circle
  • 2.
    In the diagram below, BC is a diameter, and AB is tangent to the circle at point B. OB = 6 cm, and AB = 8 cm.
    using tangent properties to find missing angles and lengths
Teacher pug

Tangent properties

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