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atejeda12 atejeda12
  • 28-07-2019
  • Mathematics
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#18-7: Find the radius of a circle that has an area of 4.5216 cm^2. Use 3.14 for pi.

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Аноним Аноним
  • 28-07-2019

Answer:

r = 1.2 cm

Step-by-step explanation:

Area (A) of a circle = πr²

r² = [tex]\frac{A}{Pi}[/tex]

r = [tex]\sqrt{\frac{A}{Pi} }[/tex]

r = [tex]\sqrt{\frac{4.5216}{3.14} }[/tex] = 1.2 cm

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