Name
Date
Circles in Circles
D
The diagram at the right shows four concentric circles.
Use the diagram to solve each problem.
C
The diameter of Circle A is 4 cm. What is its radius?
1.
B
How do you know?
3 cm
A
5 cm
2 cm
What are the radius and diameter of Circle C ?
2.
Explain how you found out.
Estimate the circumference of Circle B. Explain how you made your estimate.
3.
What are the radius, diameter, and approximate circumference of Circle D?
4.