公布昨晚题目答案，非常感谢大家的参与！ lwk12009-05-02 06:04:28

总面积： = 50
三角形各边长：
A = 4.4721359549995787
B = 4.12310562561766
C = 3.6055512754639887

此题来自：
http://87.230.22.228/doc/tutorial.pdf
第一百页～一百零一页。
还有图：Fig. 9.6

_(a) _(a) _(a)

===================原题：============================
Consider the following problem:

George is contemplating buying a farm which is a very strange shape, comprising a large triangular lake with a square field on each side. The area of the lake is exactly seven acres, and the area of each field is an exact whole number of acres. Given that information, what is the smallest possible total area of the three fields?

各field面积分别为20,17,13

Isn't the triangle field 7 acres in ur orignal problem?

the three fields, the triangle field (lake) not included

... "on each side" ... I thought there's any two sqaures...

Anyway, 你是怎么算的？

工具算出来的。

原来用程序算得，和用手算不同

昨晚好一顿折腾 下次出个能手算的...

手算应该也行的...你的面积公式不对。