This worksheet includes 30 tasks, divided into 6 groups for your convenience and arranged in order of increasing complexity. Below every group, there is a set of answers. Students will use equations of circles to find the center and radius. Also, students will practice finding the equation of a circle given the center and radius, center and diameter, the center and a point through which the circle passes, center and the circumference of the circle, the endpoints of a diameter. Two-sided workshee