| 1. | The 3 altitudes of a triangle are concurrent .
三角形的三个高共点。 |
| 2. | Many deltas are triangular in shape .
很多三角洲是三角形的。 |
| 3. | There was a triangular scar on his ckeekbone cheekbone .
他颧骨上有一块三角形的伤疤。 |
| 4. | The sum of any two sides of a triangle is greater than the third side .
任何三角形的两边之和必大于第三边。 |
| 5. | Let's consider the sawtooth pattern of similar triangles in fig. 9 .
我们来研究图9中一组相似三角形的锯齿形模型。 |
| 6. | Then one side of each of these triangles is brought into a common alignment .
这些三角形的一边会排成一条共同的直线。 |
| 7. | Prominent in the modern elementary geometry of the triangle is the nine-point circle .
九点圆在三角形的现代初等几何中是重要的。 |
| 8. | It is not easy to see that there are triangle-free graphs of large chromatic number .
很不容易看出这里是否存在色数很大而没有三角形的图。 |
| 9. | Such designs were square, diamond, triangular or hexagonal shaped pellet areas .
这些设计是正方形的，菱形的，三角形的或六角形的小格区域。 |
| 10. | The area of a triangle is equal to half the product of any side and the altitude on that side .
三角形的面积等于任何一边与那边上的高的乘积的一半。 |
