totikolo22 totikolo22
  • 11-06-2020
  • Mathematics
contestada

what is the radius of the circle that has an area of [tex]81*x*pi[/tex] degrees

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emmalawler emmalawler
  • 11-06-2020

Answer:

R=9

Step-by-step explanation:

the formula for area of a circle is pi r squared

where r denotes the radius of the circle

equating the formula for area with the area of the circle provided

p\i r squared = 81 p\i

r squared = 81

r = radical 81

r =9 inches

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