Question

????

Answer 1

4pi * r^2

Answer 2

surface area of a sphere is given by (4*(pi)*R^2)

Answer 3

welcome dear...

Answer 4

you need to multiply the value of pi

Answer 5

4pi * r^2 = x

pi = (x/r^2)/4 right?

And yeah to get x you can just rearrange it because 4 is what is giving it surface area instead of just area.

for example if I have a sphere with a radius of 50 I know that 50^2 = 2,500

I also know that if I multiply that by 4 I get 10,000 so yeah you can multiply radius^2 by 4 and then by pi or by 4pi and you will get the same exact answer.