1.

In `Delta PQR, PD_|_ QR` and PO is the bisector of `/_ QPR`. If `/_ PQR=65^(@)` and `/_ PRQ =23(1)/(2). ^(@)` then `/_ DPO` in degrees `=`A. `20(3)/(4)`B. `20(1)/(2)`C. `20(1)/(5)`D. `20(1)/(4)`

Answer» Correct Answer - a
(i) Find `/_ QPR ` using `/_ QPR =180^(@)- ( /_ PQR + /_ PRQ )`.
(ii) Evaluate `/_ OPQ`
(iii) `/_ DPO =90^(@)- /_ POQ`.


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