$\"\"$

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The vertices are $\"\"$ .

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Let $\"\"$

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(Apply area of a triangle formula: $\"\"$ )

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Area = $\"\"$ (Substitute the points) $\"\"$

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First we can find the determinant

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$\"\"$ $\"\"$

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Area = $\"\"$

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$\"\"$ square units $\"\"$

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The area of the triangle is $\"\"$ square units.