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Circle quiz

Author:Christopher Rose

Name the line or segment is best described each: a radius, chord, diameter, secant, or tangent.

Tell how many common internal tangents and how many common external tangents there are for the pair of circles.

Tell how many common internal tangents and how many common external tangents there are for the pair of circles.

In the diagram, point B is a point of tangency. Find the radius r of the circle.

Identify which arcs are congruent and their measures.

How would you prove that a circle with a radius of 3 inches is similar to a circle with a radius of 2 feet?

Given: What is the measure of arc DF?

What is the measure of arc DC?

Find the measures of angles C and D.

Find the measures of angles B, C, and E.

Find the measures of angles B, C, and D.

If arc CB=113, and arc FD=70, what are the measures of angles x and y?

Real world

In a game, C is the center of the field and AB is the goal for one team. You need to mark off the other team's goal. Apply the Congruent Central Angles Theorem by drawing two lines and using them to plot the endpoints of a congruent arc on the other side of the circle

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