Answer:
B
Step-by-step explanation:
(B) a square matrix
The given Equations are:
,
and
Which can be written as:
Thus, it is a matrix with 3 number of rows and 3 number of columns, therefore the matrix which has same number of rows and columns is a square matrix, thus, a square matrix can be form using the given system of linear equations.
2
m = 8 / 4 = 2 / 1 = 2
8430cm²
=2(63 x 30) + 2(25 x 30) + 2(63 x 25)
= 3780 + 1500 + 3150
= 8430 cm²
21
;)