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penschool
penschool penschool
  • 03-06-2016
  • Mathematics
Answered

The area of a circle is 100(Pi), what's its diameter?

Verified Answer :

1234519
1234519 1234519
  • 03-06-2016

20 I believe, if the area is equal to the radius squared times Pi then the radius is 10 (found by the square root of 100) and the diameter is two times the radius

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kenki
kenki kenki
  • 03-06-2016

S=  \(\pi r^{2}\)
100 pi =  \(\pi r^{2}\)
100 = r 2
r = 10 cm
d= 2*10=20 cm 


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