1. Find the circumference of a circle whose radius is:

(i)  $7\text{ m}$

1. Find the circumference of a circle whose radius is:

(ii)  $\text{1.4 km}$

1. Find the circumference of a circle whose radius is:

(iii)  $\text{35 cm}$

Find the circumference of a circle whose diameter is:

(i) $2.1\text{ m}$

2. Find the circumference of a circle whose diameter is:

(ii) $42\text{ cm}$

Find the circumference of a circle whose diameter is:

(iii) $\text{10.5 km}$

3. Find the radius of circle whose circumference is:

(i) $88 \text{m}$

3. Find the radius of circle whose circumference is:

(ii) $11.2\text{ km}$

3. Find the radius of circle whose circumference is:

(iii) $52.8 \text{cm}$