Lines and Angles and Circles

Which of the following names a radius?

• segment AC
• segment DB
• segment AB
• segement BC

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

• semi-circle arc
• major arc
• minor arc
• sector

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

• semi-circle arc
• major arc
• minor arc
• sector

A chord is a segment that connects ___________

• the center to the endpoint
• to one point outside the circle
• a central angle
• 2 endpoints of a circle

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.

Which words describe two circles with the same radius?

• Similar Circles
• Concentric Circles
• Congruent Circles
• Semicircle

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.

Say 'TRUE' or 'FALSE'
The diameter is the longest chord of a circle

• TRUE
• FALSE