strrs0 strrs0
  • 22-06-2020
  • Mathematics
contestada

find the area of a circle using 3.14 as pie
d=8cm

Respuesta :

MckleeCc
MckleeCc MckleeCc
  • 22-06-2020

Answer:

A = 50.24 cm

Step-by-step explanation:

Area formula of a circle:

A = π r²

diameter- r+r

which means that your diameter(8) divided by 2 = 4

r of circle= 4

A= 3.14(4²)

A = 3.14(16)

A = 50.24 cm

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Hi1315
Hi1315 Hi1315
  • 23-06-2020

Answer:

[tex] = 50.24 {cm}^{2} \\ [/tex]

Step-by-step explanation:

[tex]d = 2r \\ 8 = 2r \\ \frac{8}{2} = \frac{2r}{2} \\ r = 4[/tex]

[tex]area = \pi {r}^{2} \\ = 3.14 \times 4 \times 4 \\ = 50.24 {cm}^{2} [/tex]

hope this helps

Answer Link

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