Răspuns :
consideram dreptunghiul ABCD
AB=0,75km
CD=10,5km
Aria ABCD=AB x CD
Aria ABCD=10,5kmx0,75km=7,87km
AB=0,75km
CD=10,5km
Aria ABCD=AB x CD
Aria ABCD=10,5kmx0,75km=7,87km