Answer:
29.5
Step-by-step explanation:
Triangle area by vertices : abs (x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂)) / 2
A = abs (1*(-3 - -4) + -4*(-4 - 3) + 5*(3 - -3)) /2
= abs ( 1 + 28 + 30) /2
= 59/2
= 29.5
