Measuring Angles and Arcs

Front

What is a minor arc?

Back

A minor arc is a part of a circle that measures less than 180 degrees.

Front

What is a major arc?

Back

A major arc is a part of a circle that measures greater than 180 degrees.

Front

What is the measure of a semicircle?

Back

A semicircle measures exactly 180 degrees.

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Front

If arc AB measures 120 degrees, what type of arc is it?

Back

Arc AB is a minor arc.

Front

If arc CD measures 250 degrees, what type of arc is it?

Back

Arc CD is a major arc.

Front

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

Back

The minor arc can be AB or AC.

Front

Name a major arc in a circle with points A, B, and C.

Back

The major arc can be ACB.

Front

What is the relationship between a minor arc and its corresponding central angle?

Back

The measure of a minor arc is equal to the measure of its corresponding central angle.

Tags

CCSS.HSG.C.B.5

Front

What is the relationship between a major arc and its corresponding central angle?

Back

The measure of a major arc is equal to 360 degrees minus the measure of its corresponding central angle.

Tags

CCSS.HSG.C.B.5

Front

How do you identify a minor arc in a circle?

Back

A minor arc is identified as the shorter arc connecting two points on the circle.

Tags

CCSS.HSG.C.B.5