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The diagonals A C and B D of a rhombus i...

The diagonals `A C` and `B D` of a rhombus intersect at `(5,6)dot` If `A-=(3,2),` then find the equation of diagonal `B Ddot`

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The correct Answer is:
2y+x-17=0

`m_(AC) = (6-2)/(5-3) = 2`
`" or " m_(BD) = -(1)/(2)`
Thus, the equation of BD is
`(y-6) = -(1)/(2) (x-5)`
i.e., 2y+x-17=0
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CENGAGE ENGLISH-STRAIGHT LINES-CONCEPT APPLICATION EXERCISE 2.1
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