Question

A girl was standing with her face pointing towards south east. she moved 15 metres and then turned towards north and walked another 20 metres.
how far was she from starting point?

please explain the answer as well​

Answer 1

Answer:

15+20=35 meters

she hasn't walked in opposite direction so we add the distance

Step-by-step explanation:

Answer 2

Answer:

14.2 m

Step-by-step explanation:

see the attached solution, it is self explanatory

Girl moves from A to B to C, AC is the distance to be found

• AB=15 m, BC= 20 m, AC=?  
• AD=BD as  ∠DAB=45 deg  
• x²= AD²+CD²  
• CD²=(20-BD)²  
• AD²=15²/2  
• x²= 15²/2+(20-√15²/2)²  
• x²= 201  
• x=√201  
• x=14.2 m