Circumference of Circles and Parts of Circle

Name the pictured part of the circle.

• Radius

• Minor Arc

• Sector

• Center

• Arc

Name the pictured part of the circle.

In  a circle, if a radius or diameter is perpendicular to a chord, then it____ the chord and its arc.

• equals

• bisects

• arcs

• circles

Equal _____ of the congruent circles subtend equal angles at the centers.

• Segments

• Radii

• Arcs

• Chords

What is the distance around the outside of the circle called?

• Area

• Diameter

• Circumference

• Chord

What is the approximate numerical value of this sign?

• 3.11

• 3.14

• 4.13

• 6.28

What is the circumference of this circle?

• 62.8 inches

• 31.4 inches

• 314 inches

• 628 inches

What is the circumference of this circle?

• 706.5 miles

• 94.2 miles

• 176.62 miles

• 47.1 miles

Find the Circumference of this circle

• 34.54 cm

• 1519.76 cm

• 69.08 cm

• 138.16 cm

What is the circumference of this circle?

• 113.04 km

• 56.52 km

• 1017.36 km

• 28.26 km