connorbonnor22
connorbonnor22 connorbonnor22
  • 10-01-2022
  • Mathematics
contestada

The area of a circle is 42.71m2.
Find the length of the diameter rounded to 1 DP.
PLEASE IM BEGGING ANSWER THIS ASAP

Respuesta :

marwajaheed
marwajaheed marwajaheed
  • 10-01-2022

Answer:

d=7.4

d= =square 1.

Step-by-step explanation:

Answer Link
goddessboi goddessboi
  • 10-01-2022

Answer:

7.4 meters

Step-by-step explanation:

Solve for the radius:

[tex]A=\pi r^2[/tex]

[tex]42.71=\pi r^2[/tex]

[tex]\frac{42.71}{\pi}=r^2[/tex]

[tex]\sqrt{\frac{42.71}{\pi}}=r[/tex]

Solve for the diameter:

[tex]d=2r[/tex]

[tex]d=2\sqrt{\frac{42.71}{\pi}}[/tex]

[tex]d\approx7.4[/tex]

Therefore, the diameter of the circle is about 7.4 meters

Answer Link

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