在正方形的网格中,每个小正方形的边长都是相等的,每个小正方形的顶点叫做格点.我们把以格点的连线为边的图形叫格点图形.最常见的有格点三角形.此外,我们还可以在网格上描点、画线或建立直角坐标系.近年来各地的中考试卷中出现了许多的网格数学题,归纳起来主要是与全等三角形、相似三角形、面积、图案设计、勾股定理、坐标平面等内容有关.由于这类与网格有关的中考题大部分具有开放性的,设 In a square grid, the length of each small square is the same, and the vertices of each small square are called grid points. We call the grid-connected graph with grid points as grid pattern. The most common ones are Lattice triangles. In addition, we can also draw points, draw lines, or create rectangular coordinate systems on the grid. In recent years, many grid math problems have appeared in the mid-test papers of various regions, which are mainly summed with congruent triangles and similar triangles. , area, pattern design, Pythagorean theorem, coordinate plane, etc. Since most of these examination questions related to grids are open,