I would have taken the chance to open up a paper map (do they still exist?) and shown her where you live and where Glasgow and Edinburgh are and measured the distance with a ruler. One of my sons was like this and we had to answer questions very factually, it led to all sorts of fascinating discussions. However he totally stumped me when he asked me why does rain not fall up!
BBC 4 Extra To Be Wound Up Next Spring
Small cut on a leather sofa seat - any ideas how to fix it?
and I was congratulated on how well behaved they were.