Question

how many medians are needed to find the centroid? why?

Answer 1

http://www.mathopenref.com/constcentroid.html

Answer 2

If you draw one median, can you tell where the centroid is?
If you draw two medians, can you tell where it is?
If you draw three, can you tell where it is?

Answer 3

if you draw two you can

Answer 4

Right. You *could* draw all three, but it wouldn't give you any more info. And one isn't enough, because it could be anywhere along that line.

Answer 5

Okay, Thank you :)