Question

Commetns! :P

Answer 1

piouilkuhjfg

Answer 2

if they gae u diameter use this formula \[\huge\rm C = \pi \times diameter \]
and if u have radius of circle then use this one \[\huge\rm C = 2 \pi r\]

Answer 3

if you get 20 then that is right answer
they ask circle with "20 PI" circumference so you don't have to use pi