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Junior High
Mathematics
為什麼還要是BC中垂線的交點?🙏
Mathematics
Junior High
about 2 yearsago
bella
為什麼還要是BC中垂線的交點?🙏
4.如右圖,△ABC 中,∠B=90°,AB=21,BC=20。若有一半徑為 10 的圓分別與 AB、BC 相切,則下列何種方法可找到此圓的圓心? (A) ∠B 的角平分線與 AC 的交點 (B) AB 的中垂線與 BC 中垂線的交點 (C) ∠B 的角平分線與 AB 中垂線的交點 (D) ∠B 的角平分線與 BC 中垂線的交點 199基IⅡ 34 21 2 B 20 C
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