DS. TRIANLGE

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[email protected]: Senior | Next Rank: 100 Posts; Posts: 87; Joined: Sun Jul 24, 2011 10:36 am

by [email protected] » Mon Sep 12, 2011 9:23 am

Q1: IF A TRIANGLE IS INSCRIBED IN A CIRCLE, IS THE PERIMETER OF THE TRIANGLE GREATER THAN
16 ?

A: THE RADIUS OF CIRCLE IS 2
B: THE TRIANGLE IS AN EQUILATERAL TRIANGLE

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Source: Beat The GMAT — Data Sufficiency | Mon Sep 12, 2011 9:23 am

cans: Legendary Member; Posts: 1309; Joined: Mon Apr 04, 2011 5:34 amFollowed by: 123 members; Location: India; Thanked: 310 times; GMAT Score:750

by cans » Mon Sep 12, 2011 9:39 am

perimeter>16??
A)r=2. thus max side can be 4 (diameter). even with all the three as diameters(not possible), perimeter max=12.
Sufficient
B)Insufficient. (we can have circle with r=100 and then p>16 is possible)
IMO A

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[email protected]: Senior | Next Rank: 100 Posts; Posts: 87; Joined: Sun Jul 24, 2011 10:36 am

by [email protected] » Mon Sep 12, 2011 10:06 am

cans wrote:perimeter>16??
A)r=2. thus max side can be 4 (diameter). even with all the three as diameters(not possible), perimeter max=12.
Sufficient
B)Insufficient. (we can have circle with r=100 and then p>16 is possible)
IMO A

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