Arc and Central Angle Measures

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

• semi-circle arc

• major arc

• minor arc

• sector

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

What is the measure of arc WXZ?

• 231

• 255

• 168

• 200

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.

measure of arc JK

• 339

• 159

• 201

• 21

measure of arc JKM

• 339

• 159

• 201

• 21

measure of angle UXV

• 267

• 21

• 93

• 108

• 72

measure of arc PQ

• 161

• 71

• 199

• 109

• 270