OpenStudy (anonymous):

What is the radius of a sphere, with center at the origin, that passes through the point (2.3.4)

5 years ago
OpenStudy (anonymous):

(2,3,4)*

5 years ago
OpenStudy (anonymous):

you have 2 points, 1 is (0,0,0) 2 is (2,3,4) find out the distance between them, that's is the radius, isn't it?

5 years ago
OpenStudy (anonymous):

Do I use the distance formula? Because there is no Z in the distance formula...

5 years ago
OpenStudy (anonymous):

don't you know about distance formula?

5 years ago
OpenStudy (anonymous):

|dw:1366674632100:dw|

5 years ago
OpenStudy (anonymous):

do you know what I mean?

5 years ago
OpenStudy (anonymous):

Not really :/

5 years ago
OpenStudy (anonymous):

should i just ignore the Z? and just use distance?

5 years ago
OpenStudy (anonymous):

the distance between the center and a point in the sphere is not the radius of the sphere?

5 years ago
OpenStudy (anonymous):

why you have to worry about Z? your center is origin, what make you think that you cannot use it as a normal point?

5 years ago
OpenStudy (anonymous):

Oh okay then!

5 years ago
OpenStudy (anonymous):

know how to get that radius?

5 years ago
OpenStudy (anonymous):

Uh let me try first

5 years ago
OpenStudy (anonymous):

ok

5 years ago
OpenStudy (anonymous):

Okay! I got it! Thank you! :)

5 years ago
OpenStudy (anonymous):

lol..... np

5 years ago