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为啥你捞出题呀?
-一麾江海-
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12/19/2025 postreply
17:12:21
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嘘,据路边社报道:
-Yeli9008-
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12/19/2025 postreply
17:18:55
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24.5
-一麾江海-
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12/19/2025 postreply
17:23:34
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好久没做这种题了,答案是16
-阿里克斯Y格雷-
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12/19/2025 postreply
17:26:51
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膜拜ing
-Yeli9008-
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12/19/2025 postreply
17:32:51
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18?
-3-D-
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12/19/2025 postreply
17:30:37
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15^2-(9+X)^2=9^2-X^2, x=3.5,BC=9+2X=16
-3-D-
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12/19/2025 postreply
18:51:31
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16
-ttt1010-
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12/19/2025 postreply
17:36:39
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你这三角涵数公司记得牢牢地
-3-D-
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12/19/2025 postreply
18:15:54
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16
-浅水鱼-
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12/19/2025 postreply
17:42:49
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有步骤吗?
-Yeli9008-
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12/19/2025 postreply
17:47:24
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从B作角平分线, 然后用相似三角形,角平分线的长度=15-81/15, 再用三角形相似,BC就算出来了。
-浅水鱼-
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12/19/2025 postreply
17:50:32
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