Question: A triangle has vertices (x 1 , y 1 ), (x 2 , y 2 ) and (x 3 , y 3 ). The area

A triangle has vertices (x1, y1), (x2 , y2) and (x3, y3). The area of the triangle is given by the absolute value of D, where 

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Use this formula to find the area of a triangle with vertices (2, 3), (5, 2), and (6, 5).

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