sierrawalker5 sierrawalker5

27-06-2017
Mathematics

contestada

What is the surface area of sphere with diameter 23 ft?

Respuesta :

27-06-2017

It is: 4*pi*11.5squared = 529*pi square feet

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JennaMcH JennaMcH

27-06-2017

A = 4 π r^2
A = 4 π (11.5^2)
A = 4 π (132.25)
And now, how you phrase the answer is up to you and your teacher but I will list three of them:

A = 529π

Pi as 3.14:

A = 1,661.06

Pi in its true form but rounded to the nearest hundredth:

A = 1,661.903

Answer Link

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