Question

Hello beautiful people :) ;
Picture with problem posted below !
@epoweritheta @goformit100

Answer 1

just equate both sides , 64 pi=4*pi*r^2
now try to solve for r ??

Answer 2

^I did that , but I got r= 4, -4
so I'm stuck with two answers..

Answer 3

I've gotten that answer 3 times already, I could use your help..

Answer 4

radius cannot be negative
its the distance from center to the point

Answer 5

ya..i agree with @hartnn

Answer 6

to the point on sphere**

Answer 7

^Therefore, the negative answer is only there to confuse you?
@hartnn

Answer 8

yes, thats correct.
you can directly eliminate all negative answers even before starting to solve the question

Answer 9

^ Thank you, you learn something new every day.

Answer 10

:)

Answer 11

most welcome ^_^