Question

Pls do this asap its important​

Answer 1

Answer is 3.1 mm

Formula for circumference
C = 2 x pi x radius

We know the diameter is 1mm so radius is half of that = .5mm

C = (2) (3.14) (.5)

C = 3.14mm

Round to 1 decimal place per question

C = 3.1 mm

Answer 2

3.1 mm

Explanation:

as 1mmx3.14=3.14mm

And then correct it to 1 decimal place =3.1