Q. 514.9( 8 Votes )

If the points A (

Answer :


Area of triangle with vertices A (x1, y1), B (x2, y2), C (x3, y3) is given by,


(x1 (y2 – y3) + x2 (y3 – y1) + x3 (y1 – y2))


Area (ΔABD) =


= = 12 sq. units


Now, with AB as the base and h as the height of the ΔABD,


Area (ΔABD) =


Distance between two points is given by,


=


AB =


Area (ΔABD) =


12 =


h =


h = units

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