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PQRS is a parallelogram. PX and QY are r...

`PQRS` is a parallelogram. `PX and QY` are respectively, the perpendiculars from `P and Q` to `SR and RS` produced. Prove that `PX=QY`

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"here `PS=QR`( opposite sides of parallelogram are equal)
`/_PSR+/_QRS=180^@`
`/_PSR=180^@−/_QRS`.....(1)
`/_2+/_QRS=180^@`
`/_2=180^@−/_QRS`....(2)
`/_2=/_PSR=/_1`
In`/_\PXS `and `/_\QRY`
...
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