Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

What is the area of rectangular region R ?

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 109
Joined: Sun May 10, 2009 7:53 am
by sanjib » Fri Sep 04, 2009 8:19 am
What is the area of rectangular region R ?
(1) Each diagonal of R has length 5.
(2) The perimeter of R is 14.
IMO E
because only 30.60.90 angle situation comply to say that it would be 3:4:5 the both side and Hypt.
However it only angle we know is 90 then it could be any angle and not has to be 30 and 60
Top
Join the discussion
Source: — Data Sufficiency |
User avatar
MBA Admissions Consultant
Posts: 1090
Joined: Wed May 27, 2009 4:06 amFollowed by: 68 members
Thanked: 175 times
GMAT Score:750

by Bryant@VeritasPrep » Fri Sep 04, 2009 12:29 pm
this seems to me that both together are sufficient since you end up with two equations, two unknowns, namely:

2a+2b = 14
and
a^2 + b^2 = 25

which is solvable
Bryant Michaels
MBA Admissions Consultant


Enroll now. Pay later. Take advantage of Veritas Prep's flexible payment plan options
Top
Join the discussion
Senior | Next Rank: 100 Posts
Posts: 65
Joined: Thu Jul 02, 2009 10:38 pm
Location: Bangalore
Thanked: 1 times

by engg.manik » Sat Sep 05, 2009 11:32 am
The correct answer acc to me is C.

as from St 1 a^2 + b^2 = 25

from st 2 - 2a + 2b = 14 ---> (a+b)^2=7^2
solving will get 25 + 2ab = 49
ab = 12 which is the area.

I hope it helps
Top
Join the discussion
Legendary Member
Posts: 1578
Joined: Sun Dec 28, 2008 1:49 amFollowed by: 9 members
Thanked: 82 times
GMAT Score:720

Re: What is the area of rectangular region R ?

by maihuna » Sat Sep 05, 2009 11:36 am
sanjib wrote:What is the area of rectangular region R ?
(1) Each diagonal of R has length 5.
(2) The perimeter of R is 14.
IMO E
because only 30.60.90 angle situation comply to say that it would be 3:4:5 the both side and Hypt.
However it only angle we know is 90 then it could be any angle and not has to be 30 and 60
diagonal : (a^2+b^2)^1/2 = 5 => a^2+b^2 = 25
Perimeter: 2(a+b) = 14 => a+b = 7

=> a^2+b^2 = (a+b)^2-2ab => 2ab = -a^2+b^2 + (a+b)^2
=> 2ab = -25+49 = 24 => ab = 12 = area C
Charged up again to beat the beast :)
Top
Join the discussion