Radius and Diameter
Area of Circles
Circumference of Circles
Unit Rates in Real Life
Unit Rates from Tables
100

Diameter is 25ft. What is radius?

Radius is 12.5ft

100

Area of a circle with a radius of 2in

What is 12.56in^2

100

The radius of a circle is 3in. What is the circumference of the circle?

The circumference of the circle is 18.84in.

100

4 apples cost $2.80. How much does one apple cost? 

$0.70 each

100

x    y

3  24

5  40

7  56



What is 8.

200

Radius is 50cm. What is diameter?

Diameter is 100cm

200

What is the area of a circle with a diameter of 10cm?

The area is 78.5cm^2

200

The diameter of a circle is 14cm. What is the circumference?

43.96cm is the circumference.

200

Unit Rate has a denominator of ______

One

200

x      y 

2      5

3      7.5

4      10

8      20

What is 2.5

300

Radius is 19in. What is diameter?

Diameter is 38in

300

The radius of a circle is 7in. What is the area of the circle?

The area is 153.86in^2

300

Find the circumference of a circle with a radius of 15mm. 

The circumference is 94.2mm.

300

Jenny buys 3 books for $26.97. What is the unit rate?

The unit rate is $8.99

300

x               y

-70         -10

-56         -8

-14         -2

What is 7.

400

Diameter is 1500mm. What is the radius?

Radius is 750mm.

400

The area of a circle is 28.26in^2. What is the radius of the circle?

The radius is 3in.

400

The circumference of a circle is 113.04in. What is the radius of the circle?

The radius of the circle is 18in.

400

The the grocery store, they are having a sale on onions. The sale is 2 pounds of onions for $2.99. How much is one pound of onions? 

$1.50 per pound.

400

x       y

2       7

6       21

18     63


What is 0.29

500

If the radius of the circle is 2x+9 when x=4, what is the diameter of the circle?

Diameter is 34.
500

The area of a circle is 200.96cm^2. What is the diameter of the circle? 

The diameter is 16cm.

500

The circumference of a circle is 78.5cm. What is the diameter of the circle? 

The diameter of the circle is 25cm.

500

Which is the better buy? 32 ounces of shampoo for $4.99 or 24 ounces for $2.50. 

24 ounces for $2.50 is the better buy.

500

x      y 

20    -32

15    -24

10    -16 

What is -0.63