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What is the area, in square units, of triangle STU?

What is the area, in square units, of triangle STU?-example-1
User Ssb
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1 Answer

5 votes

Answer:

A = 4 units²

Step-by-step 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

User Steve Waldman
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