Find the diameter of a circle if the area is 153.86m². Use 3.14 for pi.

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02-07-2018
Mathematics

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Find the diameter of a circle if the area is 153.86m². Use 3.14 for pi.

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afrazi01p8qv5j afrazi01p8qv5j · Answer 1 · 2018-07-02T04:11:48+02:00

afrazi01p8qv5j afrazi01p8qv5j

02-07-2018

The formula for the area of a circle is [tex]A = \pi r^2[/tex]. Lets set this equal to the area given to find the radius.
[tex]153.86 = \pi r^2[/tex]
[tex]49 = r^2[/tex]
[tex]7 = r[/tex]
The diameter is twice the radius, meaning the answer is 7*2 = 14.

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katiefish05p5lgsw katiefish05p5lgsw · Answer 2 · 2018-07-02T04:15:21+02:00

katiefish05p5lgsw katiefish05p5lgsw

02-07-2018

6.998 i think it is right idk though

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