已解决

leogm

Q24:

On a map Town G is 10 centimeters due east of Town H and 8 centimeters due south of Town J.  Which of the following is closest to the straight-line distance, in centimeters, between Town H and Town J on the map?

A、6

B、13

C、18

D、20

E、24

Answer: B

感觉是在考三角形的三边关系，可是如何得出答案的呢？

[此贴子已经被作者于2008-5-25 19:12:17编辑过]

je_sais_pas

就是一个直角三角形嘛，一个正东方，一个正南方，勾股求弦

leogm

糊涂了，多谢指点