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

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

Geometry question

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Master | Next Rank: 500 Posts
Posts: 143
Joined: Mon Mar 14, 2011 3:13 amFollowed by: 5 members
Thanked: 34 times

by krusta80 » Sat Mar 03, 2012 10:11 pm
jzw wrote:What is the length of a circle with a radius of 100? Please show how to do. I would have thought to take circumference of the circle and divide by 4?
As far as I know, the "length" of a circle would either be the diameter or the circumference? Did you paraphrase this question?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members
Location: Gandhinagar
Thanked: 41 times

by shashank.ism » Sat Mar 03, 2012 11:28 pm
What do you mean by "length of a circle".. Do such term exist ??
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1022
Joined: Mon Jul 20, 2009 11:49 pmFollowed by: 2 members
Location: Gandhinagar
Thanked: 41 times

by shashank.ism » Sat Mar 03, 2012 11:31 pm
I think question would be length of circumference .. :)
My Websites:
www.mba.webmaggu.com - India's social Network for MBA Aspirants

www.deal.webmaggu.com -India's online discount, coupon, free stuff informer.

www.dictionary.webmaggu.com - A compact free online dictionary with images.

Nothing is Impossible, even Impossible says I'm possible.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 79
Joined: Mon Feb 13, 2012 3:02 pmFollowed by: 3 members
Thanked: 2 times

by jzw » Sun Mar 04, 2012 6:17 am
In the actual question it says "a fence in the shape of a quarter circle"...."what is the length of the entire fence".

We've got two radii at 100 ft each, and then the arc that connects the two radii together to form the quarter of a circle.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 143
Joined: Mon Mar 14, 2011 3:13 amFollowed by: 5 members
Thanked: 34 times

by krusta80 » Sun Mar 04, 2012 8:44 am
jzw wrote:In the actual question it says "a fence in the shape of a quarter circle"...."what is the length of the entire fence".

We've got two radii at 100 ft each, and then the arc that connects the two radii together to form the quarter of a circle.
Ah ok...well assuming they mean just the quarter of the arc of a circle, it's circumference/4 = 2*pi*r/4 = 50*pi

If we also include the radii (aka straight edges), then the answer is 50*pi + 200
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 79
Joined: Mon Feb 13, 2012 3:02 pmFollowed by: 3 members
Thanked: 2 times

by jzw » Sun Mar 04, 2012 8:55 am
Indeed - the correct answer is 357; (50pi)+200=357.

Maybe it was the late hour that was getting me. Diameter is 200 so circumference is 200pi, 1/4 of that is 50pi, add that to each of the 100 and we get 357. As I look @ it now it seems like an easier question. Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 143
Joined: Mon Mar 14, 2011 3:13 amFollowed by: 5 members
Thanked: 34 times

by krusta80 » Sun Mar 04, 2012 9:06 am
jzw wrote:Indeed - the correct answer is 357; (50pi)+200=357.

Maybe it was the late hour that was getting me. Diameter is 200 so circumference is 200pi, 1/4 of that is 50pi, add that to each of the 100 and we get 357. As I look @ it now it seems like an easier question. Thanks!
No problem...nothing like a lack of sleep to make those pictures start moving around in your head. Trust me I've been there too. :)
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1