Circle Terms
Radius and Diameter
Problem Solving
Circumference
Area
100

The distance from the center of a circle to the edge of the circle.

What is radius?

100

The diameter of a circle is 5. What is the radius?

What is 2.5?

100

What is the circumference of this semi-circle?

What is 21.98?

100

The diameter of a circle is 10. What is the circumference?

What is 31.4?

100

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

What is 12.56?

200

The distance from one edge of the circle through the center to the other edge.   

What is diameter?

200

The radius of a circle is 5. What is the diameter?

What is 10?

200

What is the area of this semi-circle?

What is 76.93?

200

The diameter of a circle is 13. What is the circumference in terms of pi?

What is 13π?

200

The radius of a circle is 3. What is the area in terms of pi?

What is 9π?

300

The distance around the circle.

What is circumference?

300

What is the radius?

What is 4?

300

A homeowner decides to put fencing around their circular garden to keep the rabbits out.  The garden has a radius of 7.5 feet.  The fencing costs $16.89 per foot.  How much will the fencing cost?  

What is $795.52?

300

The radius of a circle is 7. What is the circumference?

What is 43.96?

300

The diameter of a circle is 21. What is the area?  (Round to the nearest tenth.)

What is 346.2?

400

The total amount of space inside of a circle.  

What is area?

400

What is the radius?


What is 8.5?

400

The circumference of a circle is 12.56 cm.  What is the area of this same circle?  

What is 12.56 cm2?

400

The radius of a circle is 13. What is the circumference in terms of pi?

What is 26π?

400

The diameter of a circle is 30. What is the area in terms of pi?

What is 225π?

500

3.14 or 22/7

What is pi?

500

What is the diameter?

What is 10?

500

The area of a circle is 660.185.  What is the circumference of this circle?

What is 91.06?

500

The circumference of a circle is 78.5.  What is the radius?

What is 12.5?

500

The area of a circle is 254.34. What is the diameter?

What is 18?