Arc and Central Angle Degrees

Which is true of a minor arc?

• It forms half a circle.

• It forms a whole circle.

• It measures greater than 180 degrees. 

• It measures less than 180 degrees.

A ____ angle is an angle whose vertex is a the center of a circle.

• supplementary

• complimentary

• central

• obtuse

Which of the following would be a major arc in the diagram?

• BC

• BCD

• CD

• AB

Which is true of a major arc?

• Forms half a circle.

• Forms a whole circle.

• Measures greater than 180 degrees.

• Measures less than 180 degrees.

If the measure of arc ABC = 210°, what is the measure of arc AC?

• 150°

• 100°

• 210°

• 105°

Solve for x. 

• 5

• 20

• 40

• 85

What is the part of the circle highlighted in red called?

• semi-circle arc

• major arc

• minor arc

• sector

Find the measure of arc AB.

• 17 degrees

• 34 degrees

• 68 degrees

• 146 degrees

Solve for x

• 51 degrees

• 61 degrees

• 102 degrees

• 204 degrees

Solve for the missing angle.

• 45^o

• 90^o

• 22.5^o

• 128^o