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Subject :IMO    Class : Class 5

How many of the given figures have perpendicular lines?



A 1
B 2
C 3
D 4


How come D has even 1 pair of perpendicular lines ??????????????????????????????????????????????????????

Ans 1:

Class : Class 8

Ans 2:

Class : Class 5
Angles consideration is confusing ....sometime inner and sometime outer angle is consider ....actually SINGLE LINE FIGURE SHOULD BE GIVEN

Ans 3:

Class : Class 5
A perpendicular line is 90 degrees, last one doesn't count as 90 degrees, so C

Ans 4:

Class : Class 6
it is d

Ans 5:

Class : Class 9
But what about the curved arrow

Ans 6:

Class : Class 8
All 4 figure has perpendicular line along perimeter

Ans 7:

Class : Class 7
Something is wrong here. We have to confirm about it.

Ans 8:

Class : Class 3
C

Ans 9:

Class : Class 8

Ans 10:

Class : Class 5
How

Ans 11:

Class : Class 9
All figures have perpendicular lines

Ans 12:

Class : Class 6
yes

Ans 13:

Class : Class 9
It should be C as it is written that we have to find the perpendicular line for each figure, so there are three figures with perpendicular line but if we consider how many perpendicular lines are there in this picture then it should be 4. This answer is absolutely wrong.

Ans 14:

Class : Class 6

Ans 15:

Class : Class 7
D is the answer to this question because all the lines are perpendicular and in the 3rd one the bottom lines are perpendicular

Ans 16:

Class : Class 5

Ans 17:

Class : Class 8
i also got it wrong

Ans 18:

Class : Class 5
The answer should be C because in the first figure there are prependicular lines in the bottom in figure 2 there are prependicular lines all four sides near the arrows and in figure 3 there are prependicular lines at the bottom while there are no prependicular lines in figure 4 as they are all acute and obtuse angles so, the answer should be C not D.

Ans 19:

Class : Class 5
'c' = correct

Ans 20:

Class : Class 7

Ans 21:

Class : Class 5

Ans 22:

Class : Class 5
it should be a. thats what my supery dupery expert dad said

Ans 23:

Class : Class 7
CONFUSING QUESTION

Ans 24:

Class : Class 6

Ans 25:

Class : Class 8

Ans 26:

Class : Class 8

Ans 27:

Class : Class 4

Ans 28:

Class : Class 6
how

Ans 29:

Class : Class 6
It is c

Ans 30:

Class : Class 9
D cannot be the answer at all.

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