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

a triangle ABC with a point D on side AC, is triangle ABC is

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Senior | Next Rank: 100 Posts
Posts: 48
Joined: Wed Aug 27, 2008 9:58 am
by nh8404052006 » Mon Sep 01, 2008 6:31 pm
Image a triangle ABC with a point D on side AC, is triangle ABC isosceles?

(1) The area of triangular ABD is equal to the area of triangle region DBC
(2) BD is perpendicular to AC and AD = DC


OA: [spoiler]B
[/spoiler]
from GMAT+Section02 Q18
Please explain
Thank
Top
Join the discussion
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 135
Joined: Mon Jun 23, 2008 3:56 am
Thanked: 7 times

by sethids » Tue Sep 02, 2008 4:51 am
According to properties of triangles: "If the perpendicular from one vertex bisects the opposite side, the triangle is isoceles."

Stmt1: The area of 2 sub-triangles could be equal even if the triangle ABC is scalene, isoceles or equilateral. Insufficient.
Stmt2 states this property and hence is sufficient. Answer B.
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 2623
Joined: Mon Jun 02, 2008 3:17 amFollowed by: 355 members
Location: Montreal
Thanked: 1090 times
GMAT Score:780

Re: a triangle ABC with a point D on side AC, is triangle AB

by Ian Stewart » Tue Sep 02, 2008 8:20 am
nh8404052006 wrote: from GMAT+Section02 Q18
Is this from GMAT+ (GMATPlus), or am I misunderstanding the reference? When it was in operation, GMATPlus published live GMAT questions, and GMAC successfully won a lawsuit against them a few years ago; GMATPlus materials should not be consulted.
Top
Join the discussion