Question

The diameter is 7.2. What is the circumference?

Answer 1

22.6

Explanation:

circumference is pi x diamter so:

7.2 x pi (3.142)

=22.61

round it so 22.6

Answer 2

22.62 cm exactly or limited to de precision of this calculator (13 decimal places). Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.