Is quadrilateral MNPQ a rectangle?
(1) At least two of the four angles are right angles.
(2) At least three of the four angles are right angles.
[spoiler]OA is "B", why not "D"?[/spoiler]
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Is quadrilateral MNPQ Rectangle?
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2011mbaspirant
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cans
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A) insufficient.
|\
|_| It can be like this which is not rectangle or it can be square.
B) at least 3 angles are right angles and thus 4th is also right. (sum=360)
thus IMO B[/img]
|\
|_| It can be like this which is not rectangle or it can be square.
B) at least 3 angles are right angles and thus 4th is also right. (sum=360)
thus IMO B[/img]
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