| 标题 | 解决时间 | 回答数 | 回答者 |
|---|---|---|---|
| 2021-11-28 | 1 | ||
| 难题 [不确定] | 2021-11-28 | 5 | |
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| 2021-11-28 | 5 | ||
| 求证:三角形的外角和等于360°。 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 如图,在?ABC中,AD是它的角平分 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 证明:如果两个三角形有两条边和其中一边 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 如图在?ABC中AB=AC DE是过 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 如图在?ABC中AB=AC,DE是过 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 正三角形ABC,N是角ACP的平分线上 [几何图形的初步认识] | 2021-11-28 | 1 | |
| 2021-11-28 | 1 |

