Question

Preethi and Nisha started from the same point. Preethi moves towards north and Nisha moves towards east. After Nisha has covered 8 km the shortest distance between them is 10 km. How much distance had Preethi covered ?

Answer 1

Answer:

this can be found using Pythagoras theorem

as angle between the directions N and E is 90 degrees

hence here

base is 8 km and hypotenuse is 10 km

so

100=64+x^2

x^2 =100-64

x^2=36

x=6.