Circle Terms
Finding Radius
Finding Diameter
Finding Circumference
Word Questions
100

When you divide the diameter by 2.

What is radius?

100

The diameter of a circle is 8 cm. 

What is 4 cm?

100

The radius of this circle is 5 cm. 

What is 10 cm?

100

The diameter of this circle is 10 cm. 

What is 31.4 cm?

100

How many degrees are in a circle?

What is 360 degrees?

200

The longest line through the centre point of the circle.

What is the Diameter?

200

The diameter of a circle is 12.5 m. 

What is 6.25 m?

200

The radius of this circle is 2.5 m. 

What is 5 m?

200

The diameter for this circle is 13 m. 

What is 40.82 m?

200

50.27 cm of string was needed to wrap around a circular object. What is the radius of the object?

What is 8 cm?

300

The perimeter of a circle

What is Circumference?

300

The diameter of this circle is 27 km. 

What is 13.5 km?

300

The circumference of this circle is 15.7 m. 

What is 5 m?

300

The diameter of this circle is 0.25 cm. 

What is 0.785 cm?

300

The circumference of a big circle is 62.83 cm and is twice as long as a small circle. What is the radius of the small circle?

What is 5 cm?

400

A non-negotiable (hint: answer).

What is the unit of measure?

400

The circumference of this circle is 85.5 cm. 

What is 13.66 cm?

400

The circumference of this circle is 18.84 km. 

What is 6 km?

400

The radius of a circle is 45 cm. 

What is 282.6 cm?
400

Molly makes 3 identical circles with a string of 152 m long. What is the diameter of each circle? Round to nearest hundredths. 

What is 16.13 m?

500

The first 9 decimals of pi?

What is 3.141592654. 

500

The diameter of this circle is 564 m. Answer in cm.

What is 56,400 cm?

500

The circumference of this circle is 194.68 cm. 

What is 62 cm?

500

The radius for this circle is 876.45 km. Round to the nearest hundredths. 

What is 5,504.12 km?

500

A garden has a diameter of 2.4 m. The garden is to be enclosed with fencing which costs $4.53 per metre. How much fencing is required (in meters) and what is the total cost? Round to nearest hundredths. 

What is 7.54 m and $34.16?