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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
All 4 figure has perpendicular line along perimeter

Ans 2:

Class : Class 9
All figures have perpendicular lines

Ans 3:

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 4:

Class : Class 6

Ans 5:

Class : Class 4

Ans 6:

Class : Class 6
It is c

Ans 7:

Class : Class 8
i also got it wrong

Ans 8:

Class : Class 5
How

Ans 9:

Class : Class 8

Ans 10:

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

Ans 11:

Class : Class 7

Ans 12:

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

Ans 13:

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 14:

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

Ans 15:

Class : Class 6
it is d

Ans 16:

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

Ans 17:

Class : Class 5
'c' = correct

Ans 18:

Class : Class 5

Ans 19:

Class : Class 8

Ans 20:

Class : Class 9
But what about the curved arrow

Ans 21:

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 22:

Class : Class 8

Ans 23:

Class : Class 7
CONFUSING QUESTION

Ans 24:

Class : Class 8

Ans 25:

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

Ans 26:

Class : Class 3
C

Ans 27:

Class : Class 6

Ans 28:

Class : Class 5

Ans 29:

Class : Class 6
how

Ans 30:

Class : Class 6
yes

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