1.

In the given figure, `Delta OAB~ Delta OCD`. If `AB=8 cm, BO= 6.4 cm, OC=3.5 cm and CD=5 cm` find (i) OA (ii) DO.

Answer» Correct Answer - `(i) OA=5.6 cm, (ii) DO=4 cm,`
`Delta OBA~ Delta OCD rArr (OA)/(OC)=(AB)/(CD)=(BO)/(DO)rArr (OA)/(DO)rArr (OA)/(3.5)=(8)/(5)=(6.4)/(DO)` Find OA and DO.


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