已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!·································
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![已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!·································](/uploads/image/z/1067838-6-8.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%89%E4%B8%AA%E8%A7%921%2C2%2C3%E6%BB%A1%E8%B6%B3%EF%BC%9A1%E4%B8%8E2%E4%BA%92%E8%A1%A5%2C2%E4%B8%8E3%E4%BA%92%E4%BD%99%2C%E8%AF%95%E6%B1%821-3%E7%9A%84%E5%A4%A7%E5%B0%8F%21%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7)
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已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!·································
已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!
·································
已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!·································
1+2=180
2+3=90
1+2-(2+3)=1-3=180-90 =90
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已知三个角1,2,3满足:1与2互补,2与3互余,试求1-3的大小!·································
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