A matrix is diagonal if

In other words, you want non-zero elements only when the indices of the row and the column are the same: the first element of the first row must be non zero, the second element of the second row must be non-zero, and so on. All other elements must be zero.
10/10 and 5/5 are like fractions
Answer:
They are hard and you Just have to follow the steps of solbing them
Step-by-step explanation:
The total area of the shape is 32