1. What must be true about a circle with a circumference of 16 π?

the radius is 16

the diameter is 16

the diameter is π

the radius is π


QUESTION 2
1. If the radius of circle P is 4, then the

diameter is 4.

circumference is 4 π.

diameter is 8.

circumference is 16 π.


QUESTION 3
1. π is

equal to 5.26.

always equal to the radius of a circle.

twice the diameter of a circle.

a circle's circumference divided by its diameter.
1. If a circle has a center of R and a point on the circle labeled T, then RT is

the diameter.

a chord.

the radius.

twice the diameter.
1. Find the circumference of a circle with a diameter of 3. Use π = 3.14.

9.42

18.84

3.14

1.05
QUESTION 6
1. If the circumference of circle A is 16 π, then the length of a chord in circle A is

twice the diameter.

twice the circumference.

equal to the circumference.

16 inches or less.
QUESTION 7
1. If a circle has a circumference of 10 π, then the ratio of the circle's circumference to its diameter is

π.

10.

10 π.

2 π.
QUESTION 8
1. If the radius of a circle is 3.14, then the circumference equals

3.14 π

2 (3.14) π

(3.14) (3.14) π

π.


QUESTION 9
1. If the circumference of a circle is 16 π, then the radius of the circle equals

8

16

π

4
QUESTION 10
1. A circle is to the circumference as a square is to the

area.

perimeter.

volume.

diameter.