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.