[問題]GWD27-16

[magic]

Q16:
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
答案是B
我怎麼算也算不出來阿@@

[mingwhale]

把圖畫出來的話，J到H剛好是直角三角形的斜邊
所以應該是8的平方+10的平方，再開根號
64+100接近13的平方169
所以選B囉~~

[magic]

原來要取進似值唷
我還以為是我圖畫錯氇