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किसी बहुभुज के कोण `30^(@)`, `36^(@)`, `` तथा `45^(@)` में से कौन सा एक कोण बाहय कोण नहीं हो सकता है। कोण है।

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किसी बहुभुज के कोण `30^(@)`, `36^(@)`, `` तथा `45^(@)` में से कौन सा एक कोण बाहय कोण नहीं हो सकता है। कोण है।
A. `30^(@)`
B. `36^(@)`
C. `45^(@)`
D. `50^(@)`
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Correct Answer - D
As we know that
no. of sides = `(360^(@))/("External angle")`
No. of sides `(I-30^(@))` = `360^(@)/30^(@) = 12`
No. of sides `(II-36^(@)) = 360^(@)/36^(@)=10`
No. of sides `(III-45^(@)) = 360^(@)/36^(@) = 8`
No. of sides `(IV-50^(@)) = 360^(@)/50^(@) = 36/5`
`therefore 50^(@)` cannot be exterior angle `(50^(@))` बहाये कोण नहीं हो सकता हे
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