测量问题一般要涉及到仰角、俯角、方位角、坡度(坡比)等概念.它是解直角三角形应用的重点,也是中考的热点.本文以基本测量图为母图,通过几何变换(平移、旋转、对称),将测量问题(测高、测宽、航测)以及水利建筑问题串起来,能让你深刻体会各种测量一问、题基的本内图在形联系. The measurement problem generally involves the concepts of elevation, depression angle, azimuth, slope (slope ratio), etc. It is the focus of the application of right triangle, but also the hot spot in the test. In this paper, the basic measurement diagram as the mother map, through geometric transformation (translation, Rotation, symmetry), the measurement problems (altimetry, width measurement, aerial survey) and water conservancy building string together, allows you to deeply understand a variety of measurement questions, the title of this map in the form of contact.