利用面积的六种解法,(1)利用同底且等高的三角形等积法。(2)利用某一个图形面积分割为若干个三角形的面积之和的等积法。(3)同一面积(或等积)应用不同的面积公式的等积法。(4)利用相似形的面积之比等于相似比的平方的方法。(5)利用不同底但等高的三角形面积之比等于底边之比的方法。(6)利用等积法证明勾股定理 The use of the area of ​​six solutions, (1) the same floor and the use of the triangle contour method. (2) the use of a graphics area is divided into a number of triangular area and the equal area method. (3) The same area (or equivalent) using different area formula equal product method. (4) The method of using the area ratio of similar shapes is equal to the square of similarity ratio. (5) The method of using the ratio of the areas of triangles with different bottoms but with the same height equals the ratio of the bases. (6) Prove the Pythagorean theorem by the method of equal product