Question

Find The Circumference of The Circle with Diameter 2.1cm​

Answer 1

Answer:

Step-by-step explanation:

Since the diameter is 2.1 then its radius is 1.05.

Therefore the circumference is $C=2\pi r=2\pi (1.05)=2.1\pi$.

Answer 2

Answer:

6.6cm

Step-by-step explanation:

Use 2pie R

Diameter = 2 x radius

So your radius is 1. 05

2 x 22/7 x 1.05 = 6.6