Direction Test
Category : 9th Class
DIRECTION TEST
Learning Objectives
Concept of Direction
In general we make our concept of direction after seeing the position of the Sun. it is an universal truth that Sun rises in the East and goes down in the West. Thus, when we stand facing sunrise our front is called East, and our back is called West. At this position our left hand is in the northward and the right hand is in the southward. Let us see the following direction map to make the concept more clear.
Direction Map:
Note: On paper North is always on the top while South is always at the bottom.
Concept of Turn
Left turn = Anti clockwise turn
Right turn = Clockwise turn
Let us understand it through pictorial presentation:
(i) (ii)
(iii) (iv)
Important Points Regarding Directions
Concept of Minimum Distance
Minimum distance between initial and last point
\[{{\operatorname{h}}^{2}}= {{b}^{2}}+{{p}^{2}}\], where
h = Hypotenuse
b = Base
p = Perpendicular
AB = BA is the minimum or shortest distance to reach A from B or to reach B from A.
Remember this important rule is known as ‘Pythagoras Theorem’.
Example 1
Naveen starts moving from a point P towards East. After walking 1km he turns his left from T and after moving 2km up to R he again takes left turn and walks 1km up to a point Q. In this case, QP = RT; PT = QR and Q is located in North in respect of P.
Explanation: Pictorial presentation explains the truth.
Let us see:
Clearly, PT = QR = 1km & PQ = RT 2km.
Example 2
Lalit starts walking from a point P towards West. After some distance he takes right turn and Walks to a point A. Now, his direction from P is definitely towards North-West and shortest or minimum distance to reach A is PA.
Explanation: Pictorial presentation explains the truth.
Let us see:
N W = North West
N E = North East
S W = South West
S E = South East
Commonly Asked Questions
Find the distance of S from starting point,
(a) 3 km (b) 4 km
(c) 1 km (d) 2km
(e) None of these
Answer (c)
Explanation: Option (c) is correct.
Let us see:
Clearly, distance of S from starting point P is 1km.
Rest of the options is incorrect because of the correctness of option (C).
He takes a final turn rightward to reach a point M. Which direction did he move in final turn?
(a) East (b) West
(c) North (d) South
(e) None of these
Answer (a)
Explanation: Option (a) is correct.
Let us see:
Clearly, Kasinath is moving towards East.
Rest of the options is incorrect because of the correctness of option (A).
(a) North-West (b) North-East
(c) South-West (d) South-East
(e) None of these
Answer (c)
Explanation: Option (c) is correct.
Let us see:
Rest of the optionsss incorrect because of the correctness of option (C).
(a) P to Q to R (b) P to R
(c) Q to P to R (d) Not possible
(e) None of these
Answer (b)
Explanation:
Option (b) is correct.
Let use see:
Clearly, shortest route is P to R.
Rest of the options is incorrect because of the correctness of option (B).
(a) South-West (b) North-West
(c) South-East (d) North-East
(e) None of these
Answer (a)
Explanation: Option (a) is correct because Rashmi’s and Mansi’s house are opposite to each other. To reach Mansi’s house, Rashmi has to go straight towards North-East.
Therefore, clearly, to go Rashmi’s house Mansi will have to go exactly opposite to North-East and that direction will be South-West.
Let us
M = Mansi’s House
R = Rashmi’s House
Rest of the options is incorrect because of the correctness of option (A).
Summary
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