the points A(4,5,10) B(2,3,4) C(1,2,-1) are three vertices of a parallelogram ABCD. find the coordinates of point D. pls reply fast...
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we know mid point of diagonal are same
so, use section for finding mid point first
i.e mid point of A and C is (5/2,7/2,9/2)
now mid point of B and D(x, y, z)
5/2=(x+2)/2 7/2=(y+3)/2 9/2=(z+4)/2
x=3 y=4 z=5
D (3,4,5)
so, use section for finding mid point first
i.e mid point of A and C is (5/2,7/2,9/2)
now mid point of B and D(x, y, z)
5/2=(x+2)/2 7/2=(y+3)/2 9/2=(z+4)/2
x=3 y=4 z=5
D (3,4,5)
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