colombia50 colombia50

03-07-2017
Mathematics

contestada

What is the surface area of a sphere with a radius of 7 feet?

Respuesta :

koziadam koziadam

03-07-2017

Use thy formula for surface area of a sphere.

4(pi)r^2
4(pi)(7)^2
4(pi)(49)
196(pi)

615.75

Answer Link

apologiabiology apologiabiology

04-07-2017

SA=4pir^2
r=7
SA=4pi7^2
SA=4pi49
SA=196pi square feet

if we used pi=3.14 then
SA=615.44 square feet

Answer Link

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