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(Q)Karan s house is south facing. From the front door of his house Karan started walking and after walking 20 metres straight he turned to his left and walked 50 metres. After
this he turned to his right and walked 80 metres. Find the distance between the point from where he finished his walk and the door of his house
A) 50 5 metres
B) 550 metres
100 metres
D)
120 metres
Carponge
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Solution :- (from image)
- Karan house at = Point A .
- AB = 20 m .
- BD = 50 m .
- DE = 80 m .
- AE = ?
using pythagoras theorem we get,
→ AE = √[(AB + DE)² + BD²]
→ AE = √[(20 + 80)² + 50²]
→ AE = √[100² + 50²]
→ AE = √(10000 + 2500)
→ AE = √12500
→ AE = 50√5 m. (Ans.)
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