What is the area of a triangle whose vertices are R(-4,2),S(1,2), and T(-5,-4)
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Answer:
Answer:The answer to your question is 30 u²Step-by-step explanation:VerticesR(-4, 2)S (1, 2)T (-5, -4)Find the area using matrices X Y R -4 2 S 1 2 T -5 -4 R -4 2 =| (-4 x 2) + (1 x -4) + (-5 x 2) - [(-4 x -4) + (-5 x 2) + (1 x 2)]| = |-8 - 4 - 10 - [ 16 - 10 + 2]| = |-22 - [ 8]| = |-22 - 8| = |-30| = |-30|Area = 30 u²
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