三角板对学生来说是一种非常重要的学习工具,也是学生最熟悉的作图工具,它蕴藏着丰富的数学资源.一副三角板都有两个直角三角形,其中一个是等腰直角三角形,它的三个内角分别是45°、45°、90°;另一个三角形的三个内角分别是30°、60°、90°.近年来以三角板为道具,以学生常见且熟悉的几何图形为载体,由三角板通过叠、拼、平移、旋转等手段而产生的中考题新颖别 Triangle board for students is a very important learning tool, but also the most familiar tool for students mapping, which contains a wealth of mathematical resources. A triangle has two right triangle, one is the isosceles right triangle, it Of the three internal angles are 45 °, 45 °, 90 °, respectively, and the other three triangles are 30 °, 60 °, 90 ° respectively. In recent years, the triangular plate as the props to students common and familiar geometry as the carrier , From the triangular plate through the stack, fight, translation, rotation and other means produced by the new test questions do not