問題詳情
10. 如右圖， 
、 
、
相交於一點O，若∠C＝67°，∠B＝53°，且3∠1－10°＝2∠5，求∠2＋∠4＝ ___________。
、 、 相交於一點O，若∠C＝67°，∠B＝53°，且3∠1－10°＝2∠5，求∠2＋∠4＝ ___________。
參考答案
答案：B
難度：適中0.485746
統計：A(6),B(443),C(240),D(124),E(0)
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