Quiz Review:Intro to Circles, Central Angles & Arcs, Arc Lengths

Given circle A, name the radii.

*Hint: There are 3*

• segment BA
• segment CA
• segment AE
• segment GD
• segment CE

Given circle A, name the chords.

*Hint: There are 2*

• segment FD
• segment CA
• segment AE
• segment GD
• segment CE

A minor arc has a measure x that is

• 0 < x < 180
• x = 180
• 180 < x < 360

True or false: The sum of the arcs of a circle is 360.

• True
• False

A major arc has a measure x that is

• 0 < x < 180
• x = 180
• 180 < x < 360

A semicircle has a measure x that is

• 0 < x < 180
• x = 180
• 180 < x < 360

Find the length of arc YZ if the radius is 3 inches.

Round to the nearest hundredth.

• 6.28 inches
• 8.75 inches
• 10.32 inches
• 9.44 inches

Find the length of arc XY if the radius is 5 inches. Round to the nearest hundredth.

• 5.24 inches
• 2.75 inches
• 3.42 inches
• 4.88 inches

Find the length of arc XYZ if the diameter is 12 inches. Round to the nearest hundredth.

• 18.85 inches
• 12.78 inches
• 23.42 inches
• 24.83 inches

Find the length of arc ZXY if the diameter is 18 inches. Round to the nearest hundredth.

• 37.70 inches
• 34.82 inches
• 34.99 inches
• 39.12 inches