Tutoring on Circle

Learning Objectives:

Understand to write and graph the Standard Form of a circle.

Math Tutoring on Circle


A Circle is the set of points in a plane that are the same distance from one point called Center.

Some important Terminology of Circle are as follows:

1.    Radius: The Radius is a segment from the Center to the circle.

2.    Chord: A Chord is a line segment with endpoints on the circle.

3.    Diameter: A Diameter is a Chord that passes through the Center.

4.    Secant Line: A Secant Line intersects the circle in two points.

5.    Tangent: A Tangent is a line that intersects the circle in one point.

6.    Point of Tangency: A Point of Tangency is where a Tangent line touches or intersects the circle.

7.    Congruent Circle: Congruent Circles are circles that have the same Radius but different Centers.

8.   Concentric Circles: Concentric Circles are two circles that have the same Center, but a different Radius.



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Hook questions:

1.    What is a Circle?

2.   Define the relationship between Radius and Diameter of a Circle?

3.    What is Tangent and Point of Tangency of a Circle?

4.    What are the Congruent and Concentric Circle?


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