Step 1: Investigate the given circle

Step 2:  Identify the Center of the circle

            NOTE: The middle point, equidistant from all points on the circumference.

                        It is usually shown by a dot and labelled O.  

Step 3: Locate the radius of the circle among the line segments

            NOTE: A straight line from the centre to any point on the circle.

Step 4: Find the diameter of the circle.

            NOTE: A straight line from one point on the circumference to another,

                        passing through the centre.

Step 5: Find the Chord of the circle among the line segments.

          NOTE: A chord is a line segment with both endpoints on the circle.

                      The diameter is a special chord that passes through the center of

                      the circle. The diameter would be the longest chord in the circle.

Step 6: Identify the tangent of the circle

            NOTE: A tangent is a line that touches a circle at only one point. A tangent

                        is perpendicular to the radius at the point of contact. The point of

                          tangency is where a tangent line touches the circle.