Arrays mutlidimension

Question

int[,] matrix =

{

{1, 2, 3, 4},

{5, 6, 7, 8},

};

We can get the number of the rows of this two-dimensional array by using matrix.GetLength(0) and the number of all columns per row with matrix.GetLength(1). So, in this case matrix.GetLength(0) returns 2 and matrix.GetLength(1) returns 4.

 

Can you explain why the result is 2 and 4?