6a.1 Vocab Quiz

Define a straight angle.

• An angle with a measure of less than 90 degrees.

• An angles with a measure of 90 degrees.

• An angle that makes a straight line and has a measure of 180 degrees.

• An angle with a measure greater than 90 degrees.

What is the radius of a circle?

• The distance around the edge of a circle.

• The distance form one point on a circle through the center to another point on the circumference.

• The length of an arc that is a portion of the circumference.

• The distance from the center to the circumference of a circle.

What is the diameter of a circle?

• The distance around the edge of a circle.

• The distance from one point on a circle through the center to another point on the circumference.

• The length of an arc that is a portion of the circumference.

• The distance from the center to the circumference of a circle.

What is the circumference of a circle?

• The distance around the edge of a circle.

• The distance from one point on a circle through the center to another point on the circumference.

• The length of an arc that is a portion of the circumference.

• The distance from the center to the circumference of a circle.

Describe a central angle.

• An angle with a measure of less than 180 degrees.

• An angle with a vertex on the circle, and the two sides are chords.

• An angle with a vertex at the center, and the two sides are congruent.

• An angle with a measure of 180 degrees.

What is an arc in the context of a circle?

• The region of a circle bounded by an arc and the segment joining it's endpoints.

• A portion of the circumference of a circle that is defined by at least two points.

• The arc that lies between the endpoints of an inscribed angle.

• The measure of an angle with a vertex on the circle and two sides are chords.

What is the difference between a minor arc and a major arc?

• A major arc has a measure less than 180 degrees, and a minor arc has a measure more than 180 degrees.

• A major arc has a measure more than 180 degrees, and a minor arc has a measure less than 180 degrees.

• Both have the same measure.

What is arc length?

• The length of an arc that is a portion of the circumference.

• The distance around the edge of a circle.

• The measure of the central angle when the arc is equal in length to a radius of a circle.

• The distance from one point on a circle through the center to another point on the circumference.

Define an inscribed angle.

• An angle with a vertex at the center, and the two sides are congruent.

• An angle with a vertex on the circle, and the two sides are chords.

• An angle with a measure more than 180 degrees.

• An angle with a measure less than 90 degrees.

What is an intercepted arc?

• The arc that lies between the endpoints of an inscribed angle.

• The region of a circle bounded by two radii and their intercepted arc.

• The distance from the center to the circumference of a circle.

• The distance around the edge of a circle.