| 1. | These two triangles coincide .
这两个三角形相互重合。 |
| 2. | The two triangles coincide .
这两个三角形相重合。 |
| 3. | Draw a diagonal line to divide the square into two triangle
画一条对角线，把正方形分成两个三角形。 |
| 4. | Two triangles are congruent if they have two angles and the included side equal
两个三角形如果有两个角及其夹边对应相等则它们全等。 |
| 5. | What is the relation between the area of the triangle and the area of the original figure
师：这两个三角形的面积和原来图形面积有什么关系？ |
| 6. | Later one of such kind of flag piled onto another , forming the present style of the national flag
由上小下大、上下相叠的两个三角形组成，旗面为红色，旗边为蓝色。 |
| 7. | If all non - boundary edges have and only have two triangles mapping , left and right triangles , such triangle net is called general consistent
广义相容三角网格是所有非边界边都存在并且只存在左右两个三角形映射的三角网格。 |
| 8. | Angle - angle - side congruence . when two triangles have corresponding angles and sides that are congruent as shown below , the triangles are congruent
译：当两个三角形象下面所示有两个角和一个边同时相等时，这两个三角形全等。 |
| 9. | The vertex arrangement has allowed me to just add 1 vertex rather than using a triangle list and listing both triangles in detail . neat
对顶点的排列处理使得我可以仅仅加上一个1顶点，而不需要使用三角形列表来详细列出两个三角形的顶点。不错！ |
