The perimeter of a shape is the sum of its lengths. A parallelogram has four sides with two pairs of equal sides. In this case, those sides are 5 inches and 12 inches. So, the perimeter is 12*2+5*2=24+10=34 inches.
Answer:
-136
Step-by-step explanation:
We have to find the determinant of the following matrix:
We can find the determinant by expanding via 1st column. i.e. by taking each element of 1st column and multiplying it by its co-factor matrix as shown below:
det
=
The notation det() stands for determinant of the matrix.
Therefore, the determinant of the given matrix is -136