1.若三角形三边分别为a,b,根号下(a2+b2+ab),则三角形的最大角为____________.2.在三角形中,已知三边a.b.c满足(a+b+c)(a+b-c)=3ab 则角C=____________
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![1.若三角形三边分别为a,b,根号下(a2+b2+ab),则三角形的最大角为____________.2.在三角形中,已知三边a.b.c满足(a+b+c)(a+b-c)=3ab 则角C=____________](/uploads/image/z/3004208-8-8.jpg?t=1.%E8%8B%A5%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%89%E8%BE%B9%E5%88%86%E5%88%AB%E4%B8%BAa%2Cb%2C%E6%A0%B9%E5%8F%B7%E4%B8%8B%EF%BC%88a2%EF%BC%8Bb2%EF%BC%8Bab%EF%BC%89%2C%E5%88%99%E4%B8%89%E8%A7%92%E5%BD%A2%E7%9A%84%E6%9C%80%E5%A4%A7%E8%A7%92%E4%B8%BA____________.2.%E5%9C%A8%E4%B8%89%E8%A7%92%E5%BD%A2%E4%B8%AD%2C%E5%B7%B2%E7%9F%A5%E4%B8%89%E8%BE%B9a.b.c%E6%BB%A1%E8%B6%B3%EF%BC%88a%2Bb%2Bc%29%28a%2Bb-c%29%3D3ab+%E5%88%99%E8%A7%92C%3D____________)
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