11-1 Circles and Arcs

Front

What is the line segment between two points on the circle that passes through the center called?

Back

Diameter

Front

What is the measure of a straight angle?

Back

180°

Front

What is the distance around a circle called?

Back

Circumference

Front

What is the term for a line that touches a circle at exactly one point?

Back

Tangent

Front

What is the term for a part of the circumference of a circle?

Back

Arc

Front

What is the measure of a minor arc?

Back

Less than 180 degrees.

Front

What is the measure of a major arc?

Back

Greater than 180 degrees.

Front

If the radius of a circle is 4, what is the diameter?

Back

8 (Diameter = 2 * Radius)

Front

In circle O, if the radius is 4 and the measure of minor arc AB is 120 degrees, what is the length of minor arc AB to the nearest integer?

Back

8

Front

Name a minor arc in circle O with points A and B.

Back

AB