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In fig., PA, QB and RC are each perpendi...

In fig., PA, QB and RC are each perpendicular to AC. If x =8 cm and z=6 cm , then y is equal to

A

`(56)/(7)cm`

B

`(7)/(56)cm`

C

`(25)/(7) cm `

D

`(24)/(7) cm`

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