What is the formula for the circumference of a circle?
What is the formula for the area of a circle?
What is a chord of a circle?
What is the longest chord of any circle?
What is a tangent line to a circle?
What is the relationship between a tangent line and the radius at the point of tangency?
What is the Inscribed Angle Theorem?
Hint: A central angle equals its intercepted arc
What is the measure of an inscribed angle that intercepts a semicircle?
What is a central angle?