Are all angles of triangle ABC smaller than 90 degrees? 1. : Quant Question Archive [LOCKED]
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

It is currently 08 Dec 2016, 11:53
GMAT Club Tests

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Are all angles of triangle ABC smaller than 90 degrees? 1.

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
SVP
SVP
avatar
Joined: 04 May 2006
Posts: 1926
Schools: CBS, Kellogg
Followers: 22

Kudos [?]: 985 [0], given: 1

Premium Member
Are all angles of triangle ABC smaller than 90 degrees? 1. [#permalink]

Show Tags

New post 26 May 2008, 02:43
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Are all angles of triangle ABC smaller than 90 degrees?

1. 2AB=3BC=4AC
2. AC^2 + AB^2 > BC^2
_________________

GMAT Club Premium Membership - big benefits and savings

Director
Director
avatar
Joined: 23 Sep 2007
Posts: 789
Followers: 5

Kudos [?]: 184 [0], given: 0

Re: M17-4 [#permalink]

Show Tags

New post 26 May 2008, 12:17
sondenso wrote:
Are all angles of triangle ABC smaller than 90 degrees?

1. 2AB=3BC=4AC
2. AC^2 + AB^2 > BC^2


A

you have AB = 2, AC = 1, so for it to be a 30-60-90 triangle, BC has to be = sqrt(3) = ~1.7

But from the statement, BC is only 2/3 of AB, so it is not a 30-60-90 triangle, and BC is only ~1.3, so one of the angle has to be bigger than 90

statement 2 does not tell you about the ratio or relationship between the 3 sides. You can have a equilateral, or types of isoceles triangles.
Re: M17-4   [#permalink] 26 May 2008, 12:17
Display posts from previous: Sort by

Are all angles of triangle ABC smaller than 90 degrees? 1.

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.