Dimensions of a Matrix

In a matrix, it is organized ROW x COLUMN. Row are horizontal and columns are vertical.

 

 This matrix is 1x 3 because there is 1 row and 3 columns.

 This matrix is 3 x 3 because there is 3 rows and 3 columns.

 This matrix is 3 x 2 because there is 3 rows and 2 columns.

This matrix is 3 x 3 because there is 3 rows and 3 columns.