Question

Find the circumference and area of a circle whose radius is 6 cm. (Leave the answer in π).

Answer 1

Given: Radius r = 6 cm

Step-wise calculation:

1. Formula for circumference:

C = 2πr and formula for area: A = πr²

2. Circumference:

C = 2πr

= 2π(6) 

= 12π cm

3. Area:

A = πr² 

= π(6²) 

= 36π cm²

Circumference = 12π cm; Area = 36π cm².