If arc AB is congruent to arc CD, then the central angles AOB and COD have this relationship.
What is congruent?
100
If chords AB and CD are congruent, then arcs AB and CD are this.
What is congruent?
100
A set of points equidistant from one central point.
What is a circle?
100
If arcs AB and CD are congruent, then chords AB and CD are this.
What is congruent?
100
A line that touches a circle at one point.
What is a tangent line?
200
This is the relationship of an inscribed angle and its intercepted arc.
What is the angle is half the measurement of the arc?
200
This is the relationship of an arc and its inscribed angle.
What is 1/2 arc = angle.
200
A line segment with one endpoint in the center of the circle and one point on the circle.
What is a radius?
200
If two arcs are congruent, then they are this.
What is equidistant from the center?
200
The point where a tangent line touches a circle.
What is the point of tangency?
300
This is the size of the angle inscribed in a semicircle.
What is a right angle?
300
This is the relationship between two adjacent arcs that cover the entire circle.
What is sum to 360 degrees?
300
A line segment with both endpoints on the circle that passes through the center point.
What is a diameter?
300
Two chords are each measured as 36 centimeters long. One chord is 16 centimeters from the center. This is the distance the second chord is from the center.
What is 16 centimeters?
300
This is the relationship between a radius (or diameter) and a tangent line.
What is perpendicular (90 degrees)?
400
This is the relationship of inscribed angles that intercept the same arc.
What is congruent?
400
This is the relationship between the angle formed by a chord (not the diameter) and a tangent and the arc formed by the chord.
What is 1/2 arc = angle?
400
An angle with the vertex on the circle, formed by two chords.
What is an inscribed angle?
400
Any chord in the circle (that is not the diameter) and that is bisected by the diameter, meets the diameter at this angle.
What is perpendicularly? (90 degree angle)
400
This is the area of a circle with a radius of 16 inches (in terms of pi).
What is 256pi square inches.
500
This is the relationship between opposite angles of a quadrilateral inscribed in a circle.
What is supplementary?
500
This is the relationship between central angles and the corresponding arc formed by the radii.
What is congruent?
500
A line segment in a circle with both endpoints on the circle.
What is a chord?
500
If a chord, measuring 20 inches, is bisected by a line segment starting at the center and the radius is 26 inches, this is the length of the line segment.
What is 24 inches?
500
This is the length of the minor arc with a central angle of 120 degrees and a diameter of 96 meters (in terms of pi).