dreyden17 dreyden17
  • 18-02-2021
  • Mathematics
contestada

I need help asap!!!!

I need help asap class=

Respuesta :

greenforestaz
greenforestaz greenforestaz
  • 21-02-2021

Step-by-step explanation:

step 1. a circle has an area, A, of 81(pi)

step 2. A = (pi)r^2 = 81(pi)

step 3. therefore r^2 = 81 or r = 9

step 4. if the radius is 9 inches then the diameter is 18 inches.

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