10. A man walks 9 km towards east and turns right and walks 2 km and then turns
right and walks 3 km and turns left and walks 4 km. Then find the direction of the
starting point from the finally reached point and also find the distance from the
starting point.
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Answer:
finally reached point is the south of the starting point.
it's distance from the starting point is
√{(4+2)^2+(9-3)^2 } km
=√{(6)^2+6^2} km
=√(36+36) km
=√72 km
=√36×2 km
=6√2 km
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