Question

Sorry for asking many questions but im really bad at math sometimes?!

Answer 1

`c = 31.4mm`

Explanation:

`c \: = \pi \: d \\ c = 3.14 * 10 \\ c = 31.4mm`

Answer 2

Explanation:

d = 10 mm

Circuference = πd

= 3.14 * 10 = 31.4 mm

When multiplying by 10,deimal point will move one step to your RHS.