korar7593 korar7593
  • 19-05-2018
  • Mathematics
contestada

The circumference of a circle is 18.84 millimeters. what is the circle's area

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tramserran
tramserran tramserran
  • 22-05-2018
     Circumference = 2 [tex] \pi [/tex] r 
                   18.84 = 2 [tex] \pi [/tex] r
9.42/[tex] \pi [/tex] = r

Area = [tex] \pi [/tex] r²
         = [tex] \pi [/tex] (9.42/[tex] \pi [/tex])²
         = 9.42²/[tex] \pi [/tex]
         = 28.25 mm²²


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