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几何图形的功能是由它的性质决定的.由等腰梯形的定义和性质可知,等腰梯形具有下列性质:(豆)等腰梯形的两腰相等;但)等腰梯形的两条对角线相等;(3)等腰梯形同一底上的两个角相等.由此可知,等腰梯形具有下列两个基本功能:1.利用等腰梯形可以证明两条线段相等.2.
The function of geometry is determined by its nature. From the definition and properties of isosceles trapezoids, it can be known that isosceles trapezoids have the following properties: (bean) isosceles trapezoids with two waists equal; but) isosceles trapezoids with two diagonals equal; (3) isosceles trapezoid on the same bottom The two corners are equal. It can be seen that isosceles trapezoids have the following two basic functions: 1. Using isosceles trapezoids can prove that two line segments are equal. 2.