Circumference and Area of a Circle

1. Radius \(=9 cm\)

Diameter \(=18 cm\)

2. Radius \(=4.2 cm\)

Diameter \(=8.4 cm\)

3. \(=16\) units

4. \(=8\) units

5. Radius \(=6.5 cm\)

Diameter \(=13 cm\)

6. Radius \(=16 cm\)

Diameter \(=32 cm\)

7.  \(=4\) units