Question

savita goes 30m north then turns right and walk 40m then again right and walks 40 m . how many meters is she from her original position.

Answer 1

so it forms a right angle triangle with base 40 m and height 10 m 
so using Pythagoras triplet  we have the displacement = 10√(17) m

Answer 2

His present location is soth -east of his present loaction
Distance  d²=40²+10²
                   =1700
   Then d=10√17 m