**Circles Class 10 **– Continuing our series for Class 10 Revision for CBSE board exams, we bring you a new chapter today i.e. Circles

Concepts to be covered in this article are:

- Tangent, Secant and Chord of circle.
- Properties of tangent to a circle:
- We know that the tangent at any point of a circle is perpendicular to the radius through the point of contact.
- The length of tangents drawn from an external point to a circle are equal.