Justice M.

asked • 09/18/18

find the area of a circle if r=x+1

this is all that was given so please help

1 Expert Answer

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Rebecca R. answered • 09/18/18

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Experienced Elementary Math, Prealgebra, Algebra 1, and Geometry Tutor
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Hi, Justice.
 
The area of a circle is πr2
if r = x + 1 then:
 
π(x + 1)2 = (x2 + 2x + 1)π
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Justice M.

so its 3.14(x+1)‎^2 = (x^2+1)3.14 which is 3.14^2 +6.28x+3.14 is that my answer
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09/18/18

Rebecca R.

tutor
So it's 3.14x2 + 6.28x + 3.14
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09/18/18

Justice M.

how tho
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09/18/18

Justice M.

so the area of the circle is 3.14x2 +6.28x+3.14
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09/18/18

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