Circumference and Area of a Circle

Practice

Radius and diameter - Questions

1. What is the radius and diameter of the following circle?



Radius = _______ cm

Diameter = _______ cm

2. What is the radius and diameter of the following circle?



Radius = _______ cm

Diameter = _______ cm

3. The radius of a circle is 8 units.

What is the diameter of the circle?

________ units

4. The diameter of a circle is 16 units.

What is the radius of the circle?

________ units

5. What is the radius and diameter of the following circle?



Radius = _______ cm

Diameter = _______ cm

6. What is the radius and diameter of the following circle?


Radius = _______ cm

Diameter = _______ cm

7.  The radius of a circle is 2 units.

What is the diameter of the circle?

_______ units