Circle Definitions and Theorems Quiz

What is the definition of a circle?

• A line segment that goes through the center of the circle

• A set of points in a plane equidistant from a given point

• A set of points equidistant from a given line

• A part of the circumference of the circle

What is the radius of a circle?

• A line segment that goes from one point to another on the circle's circumference

• The distance from the center to a point on the circle

• A segment that goes through the center of the circle

• The distance around the edge of the circle

What is the diameter of a circle?

• A segment from the center to the edge of the circle

• A segment that goes through the center with endpoints on the edge

• A line that intersects the circle at two points

• An angle made from points sitting on the circle's edge

What is a tangent line?

• A line segment that goes from one point to another on the circle's circumference

• A segment that goes through the center of the circle

• A line that intersects a circle at only one point

• A line that intersects a circle at two points

What does the Inscribed Angle Theorem state?

• The measure of an inscribed angle is less than the central angle

• The measure of an inscribed angle is equal to the measure of the central angle

• The measure of an inscribed angle is one-half the measure of the central angle

• The measure of an inscribed angle is greater than the central angle

What is a minor arc?

• An arc whose measure is greater than 180 degrees

• An arc whose measure is less than 180 degrees

• An arc whose measure equals 180 degrees

• An arc that is the longest path between two points on the circle

What is the relationship between congruent chords and their intercepted arcs?

• Congruent chords determine congruent intercepted arcs

• Congruent chords have different intercepted arcs

• Congruent chords are always diameters

• Congruent chords determine congruent central angles

What does the Tangent Theorem state?

• A tangent to a circle is parallel to the radius

• A tangent to a circle is perpendicular to the radius drawn to the point of tangency

• A tangent to a circle intersects the circle at two points

• A tangent to a circle is a diameter

What is a semicircle arc?

• An arc that is the shortest path between two points on the circle

• An arc whose measure is less than 180 degrees

• An arc whose measure is greater than 180 degrees

• An arc whose measure equals 180 degrees

What is the Central Angle Theorem?

• If two diameters are congruent, their central angles are congruent

• If two tangents are congruent, their central angles are congruent

• If two arcs are congruent, their central angles are congruent

• If two chords are congruent, their central angles are congruent