Base=200 and height=100 (km)
This is because think of it like 4s you have two for the base and one for each of the heights sport I can’t really put it into words well :( this is (2:1:1) =4 now divide the 400/4 and you get one hundred now you multiply x2 for the base and x1 for the height. Hope this helps and you have a great day :)
