Directions
What is the Direction?
The direction is the information contained in the relative position
of one point with respect to another point without the distance information.
Directions may be either relative to some indicated reference or absolute
according to some previously agreed upon frame of reference.
Cardinal directions
The four cardinal directions or cardinal points are:
- North
- East
- South
- West
These directions are commonly denoted by their initials: N, E, S, W.
East and west are at right angles to north and south, with east being in the
clockwise direction of rotation from north and west being directly opposite
east.
Representation of all 16 cardinal directions
The intermediate directions of the four cardinal directions are:
Cardinal
directions
|
|
1
|
North
– West
|
2
|
North
– East
|
3
|
South
– West
|
4
|
South
– East
|
The intermediate directions are further classified as:
Intermediate
directions
|
|
North-North-West
|
West-North-West
|
North-North-
East
|
East
-North-East
|
South-South-West
|
West-South-West
|
South-South-East
|
East-South-East
|
Assumptions:
Throughout the directions topic, the direction of the top of the
page is always considered as North unless specified in the question.
Ex: The direction a person is facing at a present movement is always
taken as north for convenience and thereby making the approach to solve the
problem easier.
Topic 1: The Right and Left directional movement
The right and left movement of a person is always with reference to
the body moving in the scenario. It is not with respect to the person who is
solving the questions.
Right and left directions
Direct yourself
A person is walking towards you, and after walking for a few meters
he takes a right turn. Which direction he is moving?
Solution: The direction we are
facing is always assumed as North. Hence, if a person is walking towards us. He
is walking facing(towards) South.
Example 1:
Harry walks 5 km towards the
south and then turns to the right. After walking 3 km he turns to the left and
walks 5 km. What direction is he facing right now?
A.West
B.South
C.North-East
D.South-West
Solution: 
The path traced by harry
The right and left movement are with respect to the harry. After
walking 5 km towards South, he takes a right turn and now will be facing West.
After walking 3 more km he turns left and walks 5 more km. Now he is facing
South.
Hence, the answer is option B.
Example 2:
Ankitha walked 20 m towards the north. Then she turned right and
walks 30 m. Then she turns right and walks 35 m. Then she turns left and walks
15 m. Finally she turns left and walks 15 m. In which direction and how many
meters is she from the starting position?
A.15 m West
B.30 m East
C.30 m West
D.45 m East
Solution:
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