Definition of a Circle | Radius of a Circle | MathHelp.com
Need a custom math course? Visit http://www.MathHelp.com.
This lesson covers the definition of a circle and the radius of a circle. Students learn the definitions of a circle, a radius, a chord, a diameter, a secant, a tangent, congruent circles, concentric circles, an inscribed circle, and a circumscribed circle. Students are then asked to identify or draw these figures in given problems.