Mathematics
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(C)135、某n邊形於計算其內角和時,少算了一個角,結果內角和為13150,試求n= (註:每一個內角均小於180度) (A) 8 (B)9 (C)10 (D)11
國二下數學 多邊形的內角與外角

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✨ Best Answer ✨

此n邊形內角和必大於1315 所以從10、11去思考即可

Jenny

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