romelu19 romelu19
  • 03-08-2017
  • Mathematics
contestada

Video DVDs (ignoring the hole in the middle) have an area of 36π cm^2 The formula to calculate the circumference, C, for a circle is c=2√Aπ, where A is the area of the circle. What is the circumference of the disc?
12πcrr
18πcrr
24πcrr
30πcrr

Respuesta :

mmer mmer
  • 03-08-2017
it's 12π, because √36=6. 6×2= 12 :)
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