Question

find the circumference of the circle whose diameter is 210cm

Answer 1

circumference=2πr
=2*3.14*105
=659.4cm

Answer 2

Hello!

To find the circumference of a circle, you multiply the diameter by pi. Let's do so below.

210$\pi \approx$ 659.73

Therefore, our circumference is about 659.73 cm.

I hope this helps!