Question

why must geostationary orbiting satellites be placed above the equator

Answer 1

simple which direction earth rotates?

Answer 2

thnk of that and u hav gt the answer

Answer 3

helo?

Answer 4

how is that relevant

Answer 5

Simple,to cover maximum possible area.

Answer 6

thats not the reason @cibychak

Answer 7

Yeah,okay i get it.i have another explanation.look at the orbit of the satellite when placed in places other than the equator:
As you can see it

Answer 8

As you can see,this orbit is not geosynchronous because it does not remain above the same place relatively :)