Question

find the circumference of a circle whose radius is 4.55 CM

Answer 1

Hey mate!

Here's your answer!

Circumference of circle = 2πr
Circumference of the given circle = 2×22/7×4.55
=> 28.6 cm.

Hope it helps :)

Answer 2

$2\pi \: r$
$2 \times 22 \div 7 \times 4.55$

28.6 is answer