Welcome! Check out our free B-School Guides to learn how you compare with other applicants.

## Enclosed by a fence (GMAT Prep)

alex.gellatly GMAT Destroyer!
Joined
16 Nov 2011
Posted:
435 messages
Followed by:
16 members
Thanked:
45 times
Enclosed by a fence (GMAT Prep) Mon Jul 02, 2012 10:56 pm
Elapsed Time: 00:00
• Lap #[LAPCOUNT] ([LAPTIME])
The figure shown (see attachment) represents a piece of land that is in the shape of a quarter circle. If the land is enclosed by a fence, which of the following is closest to the length, in feet, of the fence?

278
341
357
400
441
Attachments

Need free GMAT or MBA advice from an expert? Register for Beat The GMAT now and post your question in these forums!
theCEO Really wants to Beat The GMAT!
Joined
17 Oct 2010
Posted:
121 messages
Thanked:
42 times
Mon Jul 02, 2012 11:02 pm
lenght of lines = 2 * 100 = 200

length of arc = 2 x pie * r * 0.25
= 50 * 3.14

evaluate 200 + 50*3.1
evaluate 200 + 50*3.2

The answer should be between these limits

### GMAT/MBA Expert

Anurag@Gurome GMAT Instructor
Joined
02 Apr 2010
Posted:
3835 messages
Followed by:
466 members
Thanked:
1749 times
GMAT Score:
770
Mon Jul 02, 2012 11:13 pm
alex.gellatly wrote:
The figure shown (see attachment) represents a piece of land that is in the shape of a quarter circle. If the land is enclosed by a fence, which of the following is closest to the length, in feet, of the fence?
The radius of the circle, r = 100 feet
Circumference of the circle = 2πr = 200π feet

Length of the fence = (2*r + 1/4 of circumference) = (200 + 50π) feet ≈ (200 + 50*3.14) feet = (200 + 157) feet = 357 feet

_________________
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)

GMAT with Gurome

Thanked by: alex.gellatly

### Best Conversation Starters

1 varun289 38 topics
2 killerdrummer 22 topics
3 sana.noor 20 topics
4 sanaa.rizwan 14 topics
5 guerrero 14 topics
See More Top Beat The GMAT Members...

### Most Active Experts

1 Brent@GMATPrepNow

GMAT Prep Now Teacher

204 posts
2 GMATGuruNY

The Princeton Review Teacher

136 posts
3 Jim@StratusPrep

Stratus Prep

100 posts
4 Anju@Gurome

Gurome

74 posts