Circle Sectors and Arc Length Review

Find the area of the dark blue sector shown at the left.  The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units.  Express answer to thenearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

You stop for lunch at a local pizza shop where each pizza is cut into 8 slices. Would you get more pizza with one slice from a 16 inch diameter pizza or two slices from a 10 inch diameter pizza?

• One Slice

• Two Slices

Find the circumference of the circle.

• 38.47 cm

• 10.99 cm

• 43.96 cm

• 21.98 cm

• Area of sectors

• Length of an arc

• Length of chord

• Area of segment

Arc RWU

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

an angle with a vertex on the circle, and two sides that are chords

• central angle

• inscribed angle

• minor angle

• major angle

What is the length of the blue arc?

• 45⁰

• 3.9 mi

• 5.9 mi

• 7.9 mi

What is the length of the green arc?

• 6 mi

• 6.3 mi

• 3.1 mi

• 12.6 mi

What is the area of the blue shaded sector?

• 18.9 cm²

• 56.5 cm²

• 113.1 cm²

• 14.1 cm²