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A girl walks 200 m towards East and then she walks 150 m towards North. The distance of the girl from starting point is

  1. 350 m

  2. 250 m

  3. 300 m

  4. 225 m

Pythagoras Theorem

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Answer

Let A be starting point and B is the end point.

A girl walks 200 m towards East and then she walks 150 m towards North. The distance of the girl from starting point is? Pythagoras Theorem, ML Aggarwal Understanding Mathematics Solutions ICSE Class 9.

In right triangle ACB,

By pythagoras theorem we get,

AB2 = AC2 + CB2

AB2 = (200)2 + (150)2

AB2 = 40000 + 22500

AB2 = 62500

AB = 62500\sqrt{62500} = 250 m.

Hence, Option 2 is the correct option.

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