BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

geometry

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 80
Joined: Thu Aug 12, 2010 11:47 pm
Location: chennai, india
Thanked: 2 times

geometry

by kushal.adhia » Sat Nov 06, 2010 2:30 am
Some help with this one

I hope the image is clear. If not please let me know and i will try and do something about it.

Thanks

Kushal
Attachments
image1.doc
Pls help
(61.5 KiB) Downloaded 127 times
Top
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 1179
Joined: Sun Apr 11, 2010 9:07 pm
Location: Milpitas, CA
Thanked: 447 times
Followed by:88 members

by Rahul@gurome » Sat Nov 06, 2010 3:00 am
Apply Pythagoras Theorem in the 2 right angled triangles, we get:
√(4^2 + 3^2) = √25 = 5
In 2nd triangle, √(13^2 - 12^2) = √25 = 5
This means the two sides of the central triangle are equal, hence it is an isosceles triangle.
Therefore, xº + 55 + 55 = 180 implies x = 70º

The correct answer is D.
Rahul Lakhani
Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
1-800-566-4043 (USA)
+91-99201 32411 (India)
Top
Senior | Next Rank: 100 Posts
Posts: 80
Joined: Thu Aug 12, 2010 11:47 pm
Location: chennai, india
Thanked: 2 times

by kushal.adhia » Mon Nov 08, 2010 6:22 am
thanks
Top
Post new topic Post Reply
• Page 1 of 1