Circumference and Arc Length

What is the arc length of minor arc AB?

• 5.23

• 6.34

• 7.23

• 8.57

What is the word for the distance around a circle?

• Circumference

• Area

• Diameter

• Radius

What is the circumference of a dinner plate with a radius of 4.5 inches?

• 28.26 inches

• 25.29 inches

• 23.13 inches

• 19.45 inches

PICK ALL ANSWERS THAT SHOW A CORRECT EQUATION to find the Circumference (C) of a circle.

Find the circumference of a circle with a radius of 12.5 mm.

• 37.68mm

• 18.84mm

• 78.54mm

• none of the above

What is the circumference of a circle with a radius of 54 m?

• 339.12 m

• 169.56 m

• 84.78 m

In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.

• 5

• 9

• 8

• 6

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

In circle O, the radius is 4, and the length of minor arc AB is 4.2 feet.  Find the measure of minor arc AB to the nearest degree.

• 90

• 60

• 55

• 113

Find the length of the arc to 2dp

• 246.09cm

• 24.61cm

• 123.05cm

• 240.86cm