DS Question Pls explain OA

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dhanda.arun: Senior | Next Rank: 100 Posts; Posts: 52; Joined: Thu Jul 31, 2008 12:30 pm; Thanked: 5 times

by dhanda.arun » Sat Sep 27, 2008 2:06 pm

Hi,
The OA is D but IMO answer should be C.
Kindly help

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Source: Beat The GMAT — Data Sufficiency | Sat Sep 27, 2008 2:06 pm

4meonly: Legendary Member; Posts: 891; Joined: Sat Aug 16, 2008 4:21 amFollowed by: 1 member; Thanked: 27 times; GMAT Score:660(

by 4meonly » Sun Sep 28, 2008 2:57 am

I solved this question earlier
but I guess my approach is not the simpliest
https://www.beatthegmat.com/gmat-prep-ds ... html#69027

Generally, regognize isosceles triangles and the summ of their angles
External angles will also help you

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