Which formula would be used to calculate any missing value for the given segments?

Jack started writing the equation of circle O as follows. He knows that a point with coordinates (2, 10) lies on circle O. What number should Jack place in the blank to finish writing the equation?

A student is using the Pythagorean theorem to derive the equation of a circle with a center (-2, 7) and a radius of 9. What is the equation of the circle?

Given: Circle Z with chords QL and ES. Using the information labeled on the circle, find the length of QL.

Given: Circle S and the measure of ∠RST = 88°. What is the measure of ∠RUT?

The circumference of circle J is 72π. What is the length of minor arc NK? Leave your answer in the form #*π.

What is the sum of the exterior angles of a convex polygon with 45 sides?

Which one of the following sets of numbers could represent the three sides of an acute triangle?

In rhombus ABCD, CA = 6 and BD = 8. What is the length of the sides of the rhombus?

Circle G has a center at (7, 5) and a diameter of 12 units. Which point lies on circle G?

What is the equation of the circle shown on the graph?

A circle is shown with two secants that intersect at point R. Find the value of x, the length of AP.