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Subject :IMO    Class : Class 5

In the given figure, which line is perpendicular to AB?



A CD
B EF
C GH
D IJ


it, can be line segment IJ

Ans 1:

Class : Class 7
Master answer required

Ans 2:

Class : Class 8

Ans 3:

Class : Class 4
ans is c

Ans 4:

Class : Class 7

Ans 5:

Class : Class 6
This question is itself wrong..

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8
do not worry sof will make the same mistake on paper

Ans 8:

Class : Class 5
ans 7 is right. perpendicular = 90 degree intersecting straight lines

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
Answer is C

Ans 11:

Class : Class 8
It's cofusing

Ans 12:

Class : Class 5
right

Ans 13:

Class : Class 7
The answer should be C

Ans 14:

Class : Class 9

Ans 15:

Class : Class 6
It is B since GH is not perpendicular by the smallest of angles. EF is perpendicular since if you look at the triangles or 5-sided shapes that are made when lines AB and EF come through a square with an angle not equal to 45 degrees, the sizes are the same. This shows that AB and EF are a pair of perpendicular lines.

Ans 16:

Class : Class 5
the answer should be C

Ans 17:

Class : Class 5

Ans 18:

Class : Class 6
The answer is C] GH Because if we count the blocks in AB then, it's4 If we count the blocks in GH then, it's4 THIS S MY FORMULAE

Ans 19:

Class : Class 7
b is totally correct just see the blocks carefully

Ans 20:

Class : Class 8

Ans 21:

Class : Class 7
B is the correct answer guys, look at the blocks carefully.

Ans 22:

Class : Class 4
Wrong options SOF.!!!!!! Do you want us to fail

Ans 23:

Class : Class 6
Ans is C..... Olympiad Trainer please give master answer or solution.

Ans 24:

Class : Class 7
it should be C

Ans 25:

Class : Class 6
All transversal lines look perpendicular

Ans 26:

Class : Class 6
How is the answer B?

Ans 27:

Class : Class 5
the answer is d as the line needs to be a proper slant and only i-j is properly slanted

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