Respuesta :

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Answer:

A = 4 units²

Explanation:

S(-5, -8), T(-3, -6), U(-6, -5)

Area of triangle given coordinates:

= 1/2 [x₁(y₂ - y₃) + x₂(y₃ - y₁) + x₃(y₁ - y₂)]

= 1/2 [-5(-6 - (-5)) + -3(-5 - (-8)) + -6(-8 - (-6))]

= 1/2 [5 - 9 + 12]

= 1/2 [ 8 ]

= 4