youngdeion
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  • 20-09-2018
  • Mathematics
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circle O has a circumference of 36pi cm

circle O has a circumference of 36pi cm class=

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Аноним Аноним
  • 20-09-2018

Circumference = 2 pi r , so

36 pi = 2 pi r

r = 36 pi / 2 pi

= 18 cm  answer

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