Circumferences

Diameter is a straight line that touches the circumferences and passes through the ___________________ of the circle.

• radius

• arc

• centre

• segment

What is the part of the circumference?

• Arc

• Segment

• Sector

• Chord

Which part of the circle represents A?

• Minor Arc

• Major Arc

• Minor Sector

• Major Sector

Circle A has a radius of 21 meters. What is its circumference?

• 131.88

• 65.94

• 207.05

• 103.53

How much fencing is required to enclose a circular garden whose radius is 14 ​m?

• 43.96

• 87.92

• 138.03

• 276.35

Find the circumference of the circle in terms of π.

What is the diameter of a circle with a circumference of 11.27π ​ft?

• 11.27

• 22.54

The diameter of the circle is 18 m. Eugene incorrectly says that the circumference of the circle is about 113.04 m. What is the circumference of the​ circle? What mistake did Eugene ​make? Use 3.14 for π.

• Eugene used 9 instead of 18 for diameter.

• Eugene did not multiply by 3.14.

• Eugene used 36 instead of 18 for diameter.

• Eugene squared the diameter.

What is the diameter of a circle with a circumference of 132 ​ft?

How many​ flowers, spaced every 4 ​in., are needed to surround a circular garden with a 200​-in. ​radius?

• 1256

• 157

• 314

• 628