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Circle Terms
Finding Radius
(find the radius for all)
Finding Diameter (Find Diameter for all)
Finding Circumference(Find Circumference for all)
Finding Area
(Find area for all)
100
The distance from the center of a circle to the outside, also half of the diameter
What is radius
100

The Diameter of this circle is 5 yards. What is the radius?

2.5 yards

100

The radius of this is circle is 5 m. What is the diameter?

10 m

100

The diameter for this circle is 10 units. What is the circumference?

31.4 units. 
100

The radius of this circle is 2 cm. What is the area? 

12.56 square cm

200

The longest chord (line) in a circle

What is the Diameter

200

The diameter is 18 inches. What is the radius?

9 inches

200

The radius of this circle is 2.5 cm. What is the diameter?

5 cm

200

The diameter for this circle is 13 miles. What is the circumference? 

40.82 miles

200

The radius of this circle is 3 mm. What is the area? 

28.26 square mm

300

The perimeter of a circle.

What is a circumference? 

300

The circumference of this circle is 37.68 m. What is the radius?

6 m

300

The circumference of this circle is 15.7 ft. What is the diameter?

5 ft

300

The diameter of a Ferris wheel is 25 feet. It rotates around 3 times. How many feet did it rotate?

235.5 feet

300

The diameter of this circle is 41 km. What is the area?

1384.74 square km

400
The total amount of space inside of a circle
What is the area?
400

The circumference of a circle is 301.44 feet. What is the radius? 

48 feet

400

The circumference of this circle is 18.84 yards. What is the diameter? 

6 yards

400

The radius for a wheel is 21 inches. If it rotates 7 times, how far did it travel?

923.16 inches

400

The circumference of a circle is 34.54 ft. What is the area to the nearest tenth? 

95 square feet

500

3.14

What is pi?

500

A wheel traveled 653.12 inches after rotating 13 times. What is the wheel's radius?  

8 inches

500

A wheel travels 65.94 feet after rotating 3 times. What is the wheel's diameter? 

7 feet

500

The area of a wheel is 254.34 square inches. What is the circumference? 

56.52 inches

500

The circumference of the circle is 53.38 miles. What is the area to the nearest tenth? 

226.9 square miles