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by jonathan123456 » Wed Jun 23, 2010 1:03 pm
I think answer should be C

If 2 angles are 90, there cannot be an angle which is 180 (since its quad)
So they have to be the other 2 angles, x+2x+90+90
x=60

Isnt that right?
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by dkumar.83 » Wed Jun 23, 2010 9:16 pm
Even i think that the answer should be C, but its E.
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by mj78ind » Thu Jun 24, 2010 7:34 am
What if the small angle is 45, then the big angle is 90 and the biggest is 135 ...... Hence E
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by outreach » Thu Jun 24, 2010 9:47 am
quadrilaterial side be A,B,C,D
all the interior angles sum is 360

option 1
assume A and B are 90 each
now C can be 60 and D can be 120 or
C can be 50 and D can be 130

lot of combination possible

insuff

option 2
angle B=2*angle C
different combinations possibel

insuff



option 1 and 2
assume A and B are 90 each
Then C =45 and D = 135

assume A and D are 90 each
B=120
C=60

insuff
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