Parts of the Circle Review

Alison is jogging on a circular track that has a radius of 140 feet. She runs along the track from point R to point N. What is the approximate distance she ran if the covered 1/4 of the total track?

• 110 ft

• 110 m

• 220 ft

• 220 m

The length of the line AC is equal to the length of the line CD.

• True.

• False

What is the line AB?

• diameter

• center

• circumference

• radius

What is the radius if the diameter is 40 m ?

• 80

• 20

• 8

The line DE is called chord.

• True.

• False

How many total degrees make a circle?

• 360

• 316

• 90

• 450

This circle is made up of 8 parts that are all the same size. Mrs. Stenberg shaded 1 part as shown. What quotient gives us the central angle of the shaded part?

• 50/3

• 300/5

• 360/8

• 1000/7

How many degrees are in the shaded part of this circle?

• 72

• 360

• 90

• 45

What is the circumference if the radius is 8cm? Use pi = 3.14.

• 50.24 cm

• 25.12 cm

• 200.96 cm

• None of the above.

The distance along an arc measured in linear units.

• area of a sector

• arc length

• arc of a circle

• sector of a circle