What is the area of a quadrilateral in cm with coordinates at 4 0 and 14 11 and 0 6 and -10 -5 on the Cartesian plane?

What is the area of a quadrilateral in cm with coordinates at 4 0 and 14 11 and 0 6 and -10 -5 on the Cartesian plane?
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The given coordinates of (4, 0) (14, 11) (0, 6) and (-10, -5)when plotted and joined together on the Cartesian plane will forminto the shape of a kite with its diagonals meeting at right anglesand by using the area formula 0.5*product of its diagonals the areaof the quadrilateral kite works out as 104 square cm
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