Central Angles
Circle Basics
Tangent Lines
100

Where is the vertex of a central angle located? 

What is the center of the circle?

100

What is the definition of a circle?

What is all points equidistant from a center?

100

How many points does a tangent line touch on a circle?

What is one point?

200

What two segments form a central angle?

What are two radii?

200

What is the name of the fixed point in a circle?

What is the center?

200

A tangent line is perpendicular to what at the point of tangency?

What is the radius?

300

What does a central angle intercept?

What is an arc?

300

What do we call a line segment from the center the the edge of a circle?

What is a radius? 

300

What is the point where a tangent touches a circle called?

What is the point of tangency? 

400

How is the measure of a central angle related to its intercepted arc?

What is they are equal?

400

What do we call a line segment that goes through the center and touches both sides of the circle?

What is a diameter?

400

What is true about a radius drawn to a tangent point?

What is it forms a right angle with the tangent? 

500

What is the total sum of all central angles in a circle?

What is 360 degrees?

500

What is a chord in a circle?

What is a segment with endpoints on the circle?

500

What is special about two tangents drawn from the same external point?

What is they are congruent in length?

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