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

Redeem

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.

★★★★★5.0559 reviews
GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Sun · 9:30 AM to 12:30 PM ET
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
GMATOnDemand Start 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 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

GMAT Prep - Geometry

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Mon Jun 16, 2008 5:25 am

by jawanindia2007 » Mon Jul 14, 2008 10:43 pm
Is the answer to this question B?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 91
Joined: Sun Jul 13, 2008 10:36 pm
Thanked: 1 times
GMAT Score:770

by BlueRain » Mon Jul 14, 2008 10:49 pm
I believe the OA should be A.

I'll explain if it is the right answer :?:
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Newbie | Next Rank: 10 Posts
Posts: 5
Joined: Mon Jun 16, 2008 5:25 am

by jawanindia2007 » Mon Jul 14, 2008 10:51 pm
sorry typo......... ithink it is c.let me know if i am right
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 106
Joined: Sun Feb 17, 2008 10:09 pm
Thanked: 3 times

by ksh » Mon Jul 14, 2008 11:09 pm
jawanindia2007 wrote:sorry typo......... ithink it is c.let me know if i am right
here the answer is A.

given the length of one side it can be deduced through the isosceles triangle, the length of required side.

hence A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 106
Joined: Sun Feb 17, 2008 10:09 pm
Thanked: 3 times

by ksh » Mon Jul 14, 2008 11:16 pm
ksh wrote:
jawanindia2007 wrote:sorry typo......... ithink it is c.let me know if i am right
Statemet 1. AD=6
angle ADB=180-2x

So, angleB=x
which means triangle ADB is an isosceles. also, from this AD=BD.
After knowing the length of BD, BC is known as the triangle BDC is also an isosceles.

Hence 1 is sufficient.

stmt2. merely knowing the angle cant let one know side of a triangle. Hence, insufficient


hence A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 25
Joined: Tue Apr 08, 2008 2:43 am
Thanked: 1 times

Re: GMAT Prep - Geometry

by manju_ej » Thu Jul 17, 2008 1:45 am
Angle BDC (2x)= angle DAB(X)+ angle DBA(X)
ie 2X= sum of the non-adjacent angles(X+X)
So it can be concluded, AD =BD = BC.(Isoceles triangles)
Statement (1) AD=6, sufficient , so BC = 6
Statemet (2) X=36, this info just reiterates the fact AD= BD=BC, but without the length of any one of these sides, length of BC cant be found, so Insufficient.
Answer - A
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1