Ravi travels 3 km in the east and turns to south and moves 4 km.how far is he from the starting point?
Answers
Answer:
it's ans is 5 km but I'm not sure
Given : Ravi travels 3 km in the east and turns to south and moves 4 km
To Find : how far is he from the starting point?
Solution:
NORTH
WEST EAST
SOUTH
A---3km-------B
|
|
4 km
|
|
C
AB = 3 km East
BC = 4 km South
South ⊥ East
=> AB ⊥ BC
=> AC² = AB² + BC²
=> AC² = 3² + 4²
=> AC² = 9 +16
=> AC² = 25
=> AC = 5 km
A - Starting point
C - End point
Ravi is 5 km from Starting point
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