What is the surface area to volume ratio of a sphere?

Answer 1

Surface area to volume ratio of a sphere equals to #3/r#, where #r# is the sphere's radius.

Surface area of a sphere with radius #r# equals to #4pir^2#. The volume of this sphere is #4/3pir^3#. Ratio of the surface area to volume, therefore, equals to

#(4pir^2)/(4/3pir^3)=4(3/4)(pi/pi)(r^2/r^3)=3/r#

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Answer 2

Avery Allen

The surface area to volume ratio of a sphere is ( \frac{{3}}{{r}} ), where ( r ) is the radius of the sphere.

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Answer 3

Sadie Allen

The surface area to volume ratio of a sphere is ( \frac{{3}}{{r}} ), where ( r ) is the radius of the sphere.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.