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In Fig. 7.49, /B\ < /A and /C\ < /D. Sho...

In Fig. 7.49, `/_B\ < /_A` and `/_C\ < /_D`. Show that `A D\ < \ B C`.

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In `ΔAOB, ∠B < ∠A ` (given)
`AO < OB` (The side opposite to the smaller angle is smaller) ... (1)
In `ΔCOD, ∠C < ∠D`
...
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