Question

The diameter of a circle is 1 cm. What is its circumference ?​

Answer 1

$the \: circumference \: of \: diameter \: of \: 1cm \: \\ is \: 3.14cm \\ \\ hope \: it \: helps \: you \:$

Answer 2

$c = 2\pi \frac{d}{2}$

$c = 2 \times \frac{22}{7} \times \frac{1}{2}$

$c = \frac{22}{7}$

hope it helps!