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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 6
It is c

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6
how

Ans 4:

Class : Class 5
How

Ans 5:

Class : Class 8

Ans 6:

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 7:

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

Ans 8:

Class : Class 6
yes

Ans 9:

Class : Class 7
CONFUSING QUESTION

Ans 10:

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 11:

Class : Class 5

Ans 12:

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

Ans 13:

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

Ans 14:

Class : Class 7

Ans 15:

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 16:

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

Ans 17:

Class : Class 6
it is d

Ans 18:

Class : Class 4

Ans 19:

Class : Class 8

Ans 20:

Class : Class 5

Ans 21:

Class : Class 6

Ans 22:

Class : Class 9
But what about the curved arrow

Ans 23:

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

Ans 24:

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

Ans 25:

Class : Class 8

Ans 26:

Class : Class 5
'c' = correct

Ans 27:

Class : Class 6

Ans 28:

Class : Class 3
C

Ans 29:

Class : Class 8
i also got it wrong

Ans 30:

Class : Class 9
All figures have perpendicular lines

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