Page 12 - 102math-wb-w3-(analytic geometry)
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WORKBOOK
Ex: the points A(1, -4), B(3, 7) and C(-11, 9) are given in the xy-plane. In the ABC triangle, if
D BC and BD CD then find AD .
Ex: Show that coordinates of the intersection point of the diagonals of a parallelogram with the
vertices A(x 1,y 2) , B(x 2,y 2), C(x 3,y 3) and D(x 4,y 4) are x x x x and y y y y
1 3 2 4 1 3 2 4
Ex: ABCD is a parallelogram with the vertices A(1,2), B(7, 2), C(9, 6). Find BD .
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102math-wb-w3-(Vector)
