To find the area, we need to first find the distance AB and BC
A(-3, -4) B(-1, 2)
x₁ = 3 y₁=-4 x₂=-1 y₂=2
Using the distance formula
AB =√ (-1-3)² + (2+4)²
=√ (-4)²+ (6)²
=√16 + 36
=√52
B(-1, 2) C(2, 1)
x₁=-1 y₁=2 x₂=2 y₂=1
Using the distance formula;
BC = √(2+1)² + (1-2)²
=√3² + 1²
= √9+1
=√10
Area = √52 x √10
=22.8 unit square
