Question

one of a trees rings has a diameter of 20 cm.
what is the circumference of the trees ring? use 3.14 for $pi$.
$c = \square$ cm
$c = \pi d$

Explanation:

Step1: Recall circumference formula

$C = \pi d$

Step2: Substitute given values

$C = 3.14 \times 20$

Step3: Calculate the product

$C = 62.8$

Answer:

62.8