Question

Find the surface area of a sphere with a diameter of 14 cm.

Answer 1

the formula is 4*pi*r^2

Answer 2

diameter = 2*radius

Answer 3

okay :) so i do 4x4? :)

Answer 4

4*pi*7, 7 because it's the half of 14

Answer 5

oh and how do you know what the radius is? idk how to get the radius

Answer 6

4*pi*7^2

Answer 7

ohh okay. so i just say what times 2=14 ? which would be 7

Answer 8

correct

Answer 9

so 7 is the radius:))

Answer 10

(The radius is half of the diameter, yes)

Answer 11

yeah, just use the formula to find the area

Answer 12

ohhh! okay thanks :)

Answer 13

no problem

Answer 14

oh wait, you said 4x7^2?

Answer 15

I got 4x49 which equals 343

Answer 16

oh wait nvm i messed up lol. i got 196 now