1/2 x length of the diagonals
Area of rhombus = 0.5 times the product of its diagonals
4
4
NO
square:plane::cube:
no, every rectangle is not a rombus
2 lines of symmetry
A rombus is a sort of dimond shape, a bit like a kite.
Yes. But not "rombus", that's "rhombus".
16
It has 1,345,890 diagonals