Grid walk (cardinal turns): compute the distance from the starting point Moves: 2 km North → 10 km East → 3 km North → 2 km East. Find the straight-line distance from the start. Choose the correct option.

Q: Grid walk (cardinal turns): compute the distance from the starting point Moves: 2 km North → 10 km East → 3 km North → 2 km East. Find the straight-line distance from the start. Choose the correct option.

Coordinates Final position = (10 + 2, 2 + 3) = (12, 5) Distance by Pythagoras d = √(12² + 5²) = √(144 + 25) = √169 = 13 km.

Difficulty: Easy

10 km
13 km
15 km
None of these

Correct Answer: 13 km

Explanation:

Coordinates
Final position = (10 + 2, 2 + 3) = (12, 5)

Distance by Pythagoras
d = √(12² + 5²) = √(144 + 25) = √169 = 13 km.

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