Question

please help me solve this question . I will mark you as brainlist​

Answer 1

Answer:

this is craft i can paste in the book

how is it?

Answer 2

Answer:

5 sq units

Step-by-step explanation:

Area = 1/2 det A

A is the 3X3 matrix with row 1 = (1,4,1)

row 2 = (-2,2,1)

row 3 = (3,2,1)