Question

A man walked 9 km towards east and then 12 km towards south.how far is he from starting point

Answer 1

in this problem you use

Pythagoras theorems

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9^2 + 12^2 = X^2

81 + 144 = X^2

= 225 = X^2

X = √225

X = 15 km

he is now at 15 km of starting point

Answer 2

$\textbf {Hey there, here is the solution.}$

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By walking east and then south, the man would have formed a right angle trIangle with the starting point.

We will use Pythagoras' Theorem to find diagonal distance from the start point to the end point.

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a² + b² = c²

c² = 9² + 12²

c² = 225

c = √225

c = 15 km

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Answer: He is 15 km from the starting point.

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⭐$\textbf {Cheers}$⭐