Radius
Diameter
Circumference
Area
Parts of a Circle
100

The diameter of the circle is 10. What is the radius?

What is 5?

100

The radius of the circle is 4. What is the diameter?

What is 8?

100

The diameter of the circle is 12. What is the circumference?

What is 37.68?

100

The radius of a circle is 8. What is the area?

What is 200.96

100

What is the round shape where every point along the edge is the same distance from the center.

What is a circle?

200

The diameter of the circle is 16. What is the radius?

What is 8?

200

The radius of the circle is 22. What is the diameter?

What is 44?

200

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

What is 31.4?

200

The radius of a circle is 1. What is the area?

What is 3.14?

200

What is the distance between the center of the circle and any point on the circle’s edge. It is usually denoted by the letter "r".

What is the radius?

300

The diameter of the circle is 88. What is the radius?

What is 44?

300

The radius of the circle is 45.2. What is the diameter?

What is 90.4?

300

The diameter of the circle is 62.5. What is the circumference?

What is 196.25?

300

The radius of the circle is 9. What is the area?

What is 254.34?

300

What is a line passing through the center of the circle and two points on the circle’s edge. It is often denoted by the letter "d".

What is the diameter?

400

The circumference of the circle is 7,850. What is the radius?

What is 1,250?

400

The circumference of the circle is 28.26. What is the diameter?

What is 9?

400

The radius of the circle is 18. What is the circumference?

What is 113.04?

400

The diameter of the circle is 144. What is the area?

What is 16,277.76?

400

What is the total length of the boundary or perimeter of a circle? It is denoted by the letter ‘C’.

What is circumference?

500

The circumference of the circle is 452.16. What is the radius?

What is 72?

500

The circumference of the circle is 1,133.54. What is the diameter?

What is 361?

500

The radius of the circle is 50.25. What is the circumference?

What is 315.57?

500

The diameter of the circle is 280. What is the area?

What is 61,544?

500

What term tells how much space is inside a circle?

What is Area?