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Friday, April 10, 2009

GRE DOUBT OF THE DAY

A parallelogram is such that all its vertices lie on circumference of a circle. Two such congruent parallelograms are joined along one of the congruent edges to form a third figure,which is??
A)kite
B)rhombus
C)parallelogram
D)rectangle
E)trapezoid

CORRECT ANSWER IS :rectangle...

I cant quite form the image in my mind...can someone please draw it?

SENT BY: KRITI AGARWAL

4 comments:

AnonymousApril 10, 2009 at 11:42 PM
d
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rohitApril 11, 2009 at 1:21 AM
a parellelogram whuz all edges r on circumfrence of a circle is always a rectengle...so if join two rectengles edge to edge then we wil get anothr rectengle
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AnonymousApril 13, 2009 at 12:08 AM
YEAH ROHIT IS RIGHT
see a llgm have opp. angles equal so if a llgm have all the vertices lie on the circle have sum of opp. angle == 180 indicates that its truly 90 deg.each
rest is true of rohit
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AnonymousNovember 5, 2009 at 4:24 PM
d... cuz if the vertices are to lie w/in a circle, it must be a square.
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