chelsietoppins27 chelsietoppins27
  • 14-01-2022
  • Mathematics
contestada

help me please 20 points and brainliest

help me please 20 points and brainliest class=

Respuesta :

victoriaslade
victoriaslade victoriaslade
  • 14-01-2022

Answer:

A≈12.57

Step-by-step explanation:

Using the formulas

A=πr2

d=2r

Solving for A

A=1

4πd2=1

4·π·42≈12.56637

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