GWD27-16

nicboy

    

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

    

Answer:  

lingshanxu

答案是 B

H到J的距离是 sqare root(10^2+8^2) =根号164

只有B和根号164最接近

bth

=√(100+64)

=√164

=√(4×41)

=2√41

=2×6.4

~13

Answer is B.