The answer is 20.
The Commutative Property (of Multiplication) says that 4x5 = 5x4. So, If 4x5 = 20, then 5x4 will also be 20.
20
No It is not 5x4=20 and 5x100=500
20
20
5X4=20
20, in case the 5 and 4 in "5x4" refer to metres and the shape is a rectangle.
no. 6x8 =48. 5x4 + 1x4 =20 + 4 =24.
2X10 would work, as would 5X4.
5x4=20 but 4x4x4x4x4=1024
2x10, 5x4