#### Answer

a) The order of the matrix is $3\times 4$.
b) The identification of the elements is not possible due to ${{a}_{32}}=0\text{ and }{{a}_{23}}=\pi$.

#### Work Step by Step

(a)
Since this matrix has three rows and four columns, therefore the order of the matrix is $3\times 4$.
Hence, the order of the matrix $A$ is $3\times 4$.
(b)
The notation ${{a}_{23}}$ stands for the element present in the second row and third column of the given matrix. Therefore, ${{a}_{23}}=\pi$
Also, the,notation ${{a}_{32}}$ stands for the element present in the third row and second column of the given matrix. Therefore, ${{a}_{32}}=0$
Hence, the identification of the elements is not possible due to ${{a}_{32}}=0\text{ and }{{a}_{23}}=\pi$.