12.2 Practice

What is the green area called?

• Sector

• Circumference

• Arc Length

• Area

• Diameter

What is the length L called?

• Sector

• Circumference

• Arc Length

• Area

• Diameter

Match the following.

• Area

• The amount of space inside a section of the circle.

• Arc Length

• The distance around a section of the circle.

• Circumference

• The amount of space inside the circle.

• Area of a Sector

• The distance around the circle.

Use the drawing tool to shade in sector AED.

Use the drawing tool to highlight arc FBD.

Use the drawing tool to highlight a central angle in the circle.

Match the following formulas.

• Area

• Arc Length

• Circumference

• Area of Sector

Find the length of the arc. Round to the nearest tenth place.

• 88.0 mi

• 60.8 mi

• 56.2 mi

• 90.7 mi

• 45.6 mi

Find the length of the arc. Round to the nearest tenth place.

• 66.0 yd

• 45.0 yd

• 57.9 yd

• 32.7 yd

• 20.9 yd

Find the length of the arc. Round to the nearest tenth place.

• 10.0 in

• 40.0 in

• 30.5 in

• 45.7 in

• 18.8 in