FFF, G G\,G and H H\,H are three towns on a regional planning map. 1 cm represents 5 kilometres.
F×F \timesF×
×G\times G×G
×H \times H\,×H
A new airport X X\,X is to be built 25 kilometres from town FFF. The airport X X\,X must be equidistant from town G G\,G and town HHH.
On the map, show the possible positions of the airport XXX.