Question

what happens to the surface area of a sphere as its sides double?

Answer 1

well a sphere only needs a radius to calculate surface area.

so look at it this way

the formula is

\[SA = 4 \pi r^2\]

find the Surface area when r = 1

then double the radius and find the surface area... what happens when you compare them

\[\frac{SA_{r = 2}}{SA_{r = 1}}\]

Answer 2

so its 13/3

Answer 3

idk????