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किसी बहुभुज का अन्तः कोण उसके बाहय कोण का 5 गुना है। बहुभुज की भुजाये ज्ञात करे?A. 14B. 16C. 12D. 18 |
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Answer» Correct Answer - C According to question sum of interior angles As we know that Exterior angle + interior angle =`180^(@)` Exterior angle +5 exterior angle =`180^(@)` 6 Exterior angle =`180^(@)` Exterior angle = `30^(@)` `therefore` No. of sides = `(360^(@))/("External angle")` `=(360^(@))/(30^(@)) = 12` |
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