coordinate_method.doc - AREA BY COORDINATES Y x1 a x2 b d A...

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AREA BY COORDINATES CORNER COORDINATES TOTAL DEPARTURE TOTAL LATITUDE A x 1 y 1 B x 2 y 2 C x 3 y 3 D x 4 y 4 Area of ABCD = Area of trapezoid aABb + Area of Trapezoid bBCc - Area of Trapezoid aADd - Area of Trapezoid dDCc Conventional determinant form as derived from analytic geometry x 1 x 2 x 3 x 4 x 1 Area ABCD = (1/2) * ----- ------ ------
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