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1-q10

by stubbornp » Sun Oct 12, 2008 10:48 am
10. Is ΔMNP isosceles?
(1) Exactly two of the angles, ∠M and ∠N, have the same measure
(2) ∠N and ∠P do not have the same measure.
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Source: — Data Sufficiency |
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Re: 1-q10

by parallel_chase » Sun Oct 12, 2008 11:01 am
stubbornp wrote:10. Is ΔMNP isosceles?
(1) Exactly two of the angles, ∠M and ∠N, have the same measure
(2) ∠N and ∠P do not have the same measure.
Answer should be A.

Statement I
∠M = ∠N. For a triangle to be isosceles, two of any angles of a triangle should equal. Sufficient.

Statement II
∠P is not equal to ∠N. We dont know if ∠N is equal to ∠M or ∠P is equal to ∠M. Insufficient.

Hence A.

OA?
No rest for the Wicked....
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Re: 1-q10

by stubbornp » Sun Oct 12, 2008 11:27 am
parallel_chase wrote:
stubbornp wrote:10. Is ΔMNP isosceles?
(1) Exactly two of the angles, ∠M and ∠N, have the same measure
(2) ∠N and ∠P do not have the same measure.
Answer should be A.

Statement I
∠M = ∠N. For a triangle to be isosceles, two of any angles of a triangle should equal. Sufficient.

Statement II
∠P is not equal to ∠N. We dont know if ∠N is equal to ∠M or ∠P is equal to ∠M. Insufficient.

Hence A.

OA?


o o....its so easy...I didnt read that word EXACTLY..thanks parralle_chase
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by stubbornp » Sun Oct 12, 2008 6:54 pm
oa is A
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