Question

Find the circumference of a circle with radius 63 mm.

Answer 1

C≈395.84mm

Explanation:

C=2πr=2·π·63≈395.84067mm

Hope this helps

Answer 2

395.64mm²

Explanation:

r = 63mm

circumference of circle = 2
`\pi`r

= 2 × 3.14 × 63

= 395.64mm²