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Line segments MN intersects line XY at point P and line segment AB int

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Math Expert
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Joined: 02 Sep 2009
Posts: 58464
Line segments MN intersects line XY at point P and line segment AB int  [#permalink]

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New post 29 Aug 2018, 01:26
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A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

90% (00:41) correct 10% (01:06) wrong based on 21 sessions

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Status: Learning stage
Joined: 01 Oct 2017
Posts: 1011
WE: Supply Chain Management (Energy and Utilities)
Re: Line segments MN intersects line XY at point P and line segment AB int  [#permalink]

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New post 29 Aug 2018, 03:52
Bunuel wrote:
Image
Line segments MN intersects line XY at point P and line segment AB intersects XY at point C. What is the measure of angle ACY?

(1) MN is parallel to AB
(2) MPY is 108°.


Attachment:
image003.jpg


Question stem:- \(\angle{ACY}=?\)

St1:- MN is parallel to AB
We need at least one of the measures of the angles at the intersection of 3 lines.
Insufficient.

St2:- MPY is 108°.
No relationship between line AB and MN is provided.
Insufficient.

Combined, we have MN || AB
Note:- Corresponding angles formed by 2 parallel lines(MN & AB) and its transversal(here XY) are equal.
So, \(\angle{ACY}=\angle{MPY}=108°\).
Sufficient

Ans. (C)
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Re: Line segments MN intersects line XY at point P and line segment AB int   [#permalink] 29 Aug 2018, 03:52
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