Answer:
The area of ABCD is 12 square units. Option b is correct.
Step-by-step explanation:
From the given figure it is clear that the vertices of triangle are A(-5,-2), B(-1,2), C(0,-1), D(-2,-3).
The area of ABCD is the sum of area of triangle ABC and ACD.
Area of a triangle is
Area of triangle ABC is
The area of triangle ABC is 8 square units.
Area of triangle ACD is
The area of triangle ABC is 4 square units.
The are of ABCD is
Therefore the area of ABCD is 12 square units. Option b is correct.