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किसी बहुभुज का आंतरिक कोण उसके बाह्य कोण से दो गुना है । बहुभुज की भुजाओं की संख्या ज्ञात करे ?A. 8B. 6C. 7D. 5 |
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Answer» Correct Answer - A According to the question =Internal angle = 2(external angle) hindi , Internal angle + External angle = `180^(@)` `therefore` 2External angle = External angle = `180^(@)` 3External angle=`180^(@)` hindi =`180^(@)/3 = 60^(@)` No. of sides = `360^(@)/("External angle")` `=(360^(@))/(60^(@)` = 6 (no. of sides) |
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