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The interior angle of a regular polygon ...

The interior angle of a regular polygon exceeds its exterior angle be . The `90^@` number of side of the polygon is:
एक नियमित बहुभुज का आंतरिक कोण इसके बाहरी कोण से `90^@` से अधिक है। बहुभुज के भुजाओ की संख्या ज्ञात करे

A

6

B

12

C

10

D

8

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