Question

find the circumference of the circle of the radius of the circle is 10cm

Answer 1

circumference of circle =
$2\pi \: r$
$2 \times \binom{22}{7} \times 10$
$\frac{440}{7}$
=62.85

Answer 2

r=10cm

Circumference=2 pie r

2x22/7x10

44/7x10

440/7= 62.85cm