Triangle....

This topic has expert replies
Senior | Next Rank: 100 Posts
Posts: 80
Joined: Mon Jan 31, 2011 10:08 pm
Followed by:2 members

Triangle....

by kamalakarthi » Sun Apr 03, 2016 12:00 pm
In this equilateral triangle, the value ABC is given. The circumference should be divided by 2/3. and then proceed to find the dia. Is it correct ?
Attachments
Triangle.JPG
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
Elite Legendary Member
Posts: 10392
Joined: Sun Jun 23, 2013 6:38 pm
Location: Palo Alto, CA
Thanked: 2867 times
Followed by:511 members
GMAT Score:800

by [email protected] » Sun Apr 03, 2016 7:30 pm
Hi kamalakarthi,

Mitch offers a nice explanation to this question here:

https://www.beatthegmat.com/multifigure- ... 86794.html

GMAT assassins aren't born, they're made,
Rich
Contact Rich at [email protected]
Image

User avatar
Legendary Member
Posts: 2135
Joined: Mon Feb 03, 2014 9:26 am
Location: https://martymurraycoaching.com/
Thanked: 955 times
Followed by:140 members
GMAT Score:800

by MartyMurray » Sun Apr 03, 2016 9:34 pm
kamalakarthi wrote:In this equilateral triangle, the value ABC is given. The circumference should be divided by 2/3. and then proceed to find the dia. Is it correct ?
What you said is correct, except in that strictly speaking the correct way to proceed is not to divide the circumference by 2/3, but rather to divide the arc by 2/3 to find the circumference.
Marty Murray
Perfect Scoring Tutor With Over a Decade of Experience
MartyMurrayCoaching.com
Contact me at [email protected] for a free consultation.