juanmannuel76
juanmannuel76 juanmannuel76
  • 03-05-2020
  • Mathematics
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Radius of a circle round to nearest hundredth will mark brainliest

Radius of a circle round to nearest hundredth will mark brainliest class=

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Sarah06109
Sarah06109 Sarah06109
  • 03-05-2020

Answer:

Circumference

The circumference of a circle can be found using:

c=2πr

We know the radius is 18, so we can substitute 18 in for r

c=2π18

Multiply

c=36π

c=113.097335529

To the nearest hundreth:

c=113.10 inches

Area

The area of a circle can be found using:

a=πr^2

We know the radius is 18, so we can substitute 18 in for r

a=π18^2

a=π324

a=1017.87601976

To the nearest hundreth

a=1017.88 inches^2

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