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09-06-2017
Mathematics

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how do I find the area of a circle when the circumference is 58 pie

how do I find the area of a circle when the circumference is 58 pie class=

Respuesta :

09-06-2017

C=2[tex] \pi[/tex]r
A=[tex] \pi[/tex]r²

C=2[tex] \pi[/tex]r=58[tex] \pi[/tex]
2r=58
r=29

A=[tex] \pi[/tex]r²
A=29²[tex] \pi[/tex]
A=841[tex] \pi[/tex]

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Lieuvan119 Lieuvan119

09-06-2017

C=πd
58π=πd
We conclude that
d=58 cm
r=1/2d
r=58(1/2)
r=29 cm
A=πr^2
A=29^2π
A=841π
Or
A≈2640.74 square cm. Hope it help!

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