Answer Posted / julia jeni, ccet, pondy

.y
. |
. | 6km
. 1 |
4km . |
-----------------------
| . 8km
10| 2 .
km| .
| .
x.

Using pythogoras theorem,
the length of hypotenous of triangle 1=10;
similarly,
the length of hypotenous of triangle 2=10.8;
total distance between x and y =10+10.8=20.8km.

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