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Popular >

circumference+x^2+y^2=81

Solution

circumference

+ x^{2} + y^{2} = 81

Solution

C = 18 π

Solution steps

C = 2 π r

Find the radius

Radius given

+ x^{2} + y^{2} = 81 : r = 9

C = 2 π 9

Refine

C = 18 π

Popular Examples

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circumference (x+1)^2+(y+2)^2=16 circumference

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circumference 2x^2+2y^2-8x-12y+8=0 circumference

2 x^{2} + 2 y^{2} - 8 x - 12 y + 8 = 0

Frequently Asked Questions (FAQ)

What is the circumference+x^2+y^2=81 ?
The circumference+x^2+y^2=81 is C=18pi