In this 12-part series, students will learn to define the term circle and how to find angle measures for central angles and arcs. The distance formula is used to find the length of a radius on a graph and the midpoint formula is reviewed in order to find the coordinates of the center of a circle on a graph. Perpendicular bisectors are also used in this lesson to find the center of a circle. Students will learn: diameter, radius, arc (minor, major, semicircle), central angle, chord, tangent, and secant. Part of the "Zero the Math Hero" series.