If the radius of a circle is 19, what is the diameter?
If the diameter of a circle is 20, what is the radius?
If the radius of a circle is 15, what is the diameter?
If the radius of a circle is 5.5, what is the diameter?
If the radius of a circle is 12.6, what is the diameter?
If the diameter of a circle is 21, what is the radius?
If the radius of a circle is 12.9, what is the diameter?
If the diameter of a circle is 56, what is the radius?
If the radius of a circle is 9
If the radius of a circle is 7.93, what is the diameter?
If the diameter of a circle is 234.6, what is the radius?
If the radius of a circle is 16.12, what is the diameter?

Identify the center
Identify the two points that make up the Diameter. (Write answers like this, A and C)
Identify the two points that make up the Radius. (Write answers like this, A and C)

Identify the center
Identify the two points that make up the Diameter.
Identify the two points that make up the Radius.

Identify the center
Identify the points that make up the Diameter.
Identify ONE set of points that could be the radius.
What is the constant of proportionality?

What is the constant of proportionality?

Fill in the table

If Quadrilateral Q is a scaled copy of Quadrilateral P created with a scale factor of 3, what is the perimeter of Q?

A scale drawing of a car is presented in the following three scales. Order the scale drawings from smallest to largest. (There are about 1.1 yards in a meter, and 2.54 cm in an inch.)
a. 1 in to 1 ft
b. 1 in to 1 m
c. 1 in to 1 yd
A
B
C
A model airplane is built at a scale of 1 to 72.
If the model plane is 8 inches long, how many feet long is the actual airplane?
Water costs $1.25 per bottle. At this rate, what is the cost of:
10 bottles?