Review on Central Angles, Chords and Diameters

What is the value of x?

• 37

• 72

• 108

• 18

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

• supplementary

• complimentary

• central

• obtuse

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

• TRUE

• FALSE

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

• semi-circle arc

• major arc

• minor arc

• sector

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

• 150°

• 100°

• 210°

• 105°

• x = 160
• x = 40
• x = 80
• x = 360

Find the measure of arc AB.

• 17

• 34

• 68

• 146

Which best describes segment AB? (a)  

• chord

• secant

• tangent

• diameter

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