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 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

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
Limited cohort · enrollment openTarget 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.

Geo - Rt triangle

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
User avatar
Master | Next Rank: 500 Posts
Posts: 447
Joined: Sun Apr 22, 2012 7:13 amFollowed by: 13 members
Thanked: 46 times
GMAT Score:700
by hemant_rajput » Thu Jul 04, 2013 9:58 am
The perimeter of a certain isosceles right triangle is 32 + 32 2√. What is the length of the hypotenuse of the triangle?
(A)16
(B)32
(C)8 root(3)
(D)8 root(2)
(E)16 root(2)
I'm no expert, just trying to work on my skills. If I've made any mistakes please bear with me.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16207
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

by Brent@GMATPrepNow » Thu Jul 04, 2013 10:16 am
hemant_rajput wrote:The perimeter of a certain isosceles right triangle is 32 + 32 √2. What is the length of the hypotenuse of the triangle?
(A)16
(B)32
(C)8 root(3)
(D)8 root(2)
(E)16 root(2)
EDIT: I deleted my post. I had assumed that the question was identical to this popular question:
https://www.beatthegmat.com/relation-bet ... tml#700804

Cheers,
Brent
Last edited by Brent@GMATPrepNow on Wed Nov 06, 2013 6:54 am, edited 1 time in total.
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16207
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

by Brent@GMATPrepNow » Thu Jul 04, 2013 10:34 am
hemant_rajput wrote:The perimeter of a certain isosceles right triangle is 32 + 32 √2. What is the length of the hypotenuse of the triangle?
(A)16
(B)32
(C)8 root(3)
(D)8 root(2)
(E)16 root(2)
EDIT: I deleted my post. I had assumed that the question was identical to this popular question:
https://www.beatthegmat.com/relation-bet ... tml#700804

Cheers,
Brent
Last edited by Brent@GMATPrepNow on Wed Nov 06, 2013 6:55 am, edited 1 time in total.
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
GMAT Instructor
Posts: 15539
Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members
Location: New York, NY
Thanked: 13060 times
GMAT Score:790

by GMATGuruNY » Thu Jul 04, 2013 10:37 am
hemant_rajput wrote:The perimeter of a certain isosceles right triangle is 32 + 32√2. What is the length of the hypotenuse of the triangle?

(A)16
(B)32
(C)8 root(3)
(D)8 root(2)
(E)16 root(2)
The sides of an isosceles right triangle are proportioned: s : s : s√2.
So if s=side and h=hypotenuse, then h = s√2 and s = h/√2.

We can plug in the answers, which represent the hypotenuse.
The correct answer is unlikely to be C, since √3 is not a value typically attributed to an isosceles right triangle.

Answer choice D: h = 8√2
s = (8√2)/√2 = 8.
p = 8 + 8 + 8√2 = 16 + 8√2.
Eliminate D. The perimeter needs to be quite a bit larger.

Answer choice B: h = 32
s = 32/√2 = (32*√2)/(√2*√2) = (32√2)/2 = 16√2.
p = 16√2 + 16√2 + 32 = 32 + 32√2. Success!

The correct answer is B.
Last edited by GMATGuruNY on Thu Jul 18, 2013 2:13 am, edited 1 time in total.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 17
Joined: Tue Apr 09, 2013 9:00 pm
GMAT Score:700

by kuzzden » Wed Jul 10, 2013 12:31 am
Hi, maybe simple algebraic method will also help:

Since the triangle is isosceles, its P = 2x + y
since it is right y*y = 2x*x, since all values are positive
x= y / sqr(2) = y*sqr(2)/2

Finally, after substitution we get P = y + y* sqr(2) = 32 + 32*sqr(2)
So, y = 32
The best way to make your dreams come true is to wake up!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Senior | Next Rank: 100 Posts
Posts: 90
Joined: Wed Jun 26, 2013 10:55 pmFollowed by: 1 member
Thanked: 11 times

by macattack » Thu Jul 18, 2013 1:22 am
Hi experts,
you gave two dissimilar answers!!!! I think Mitch got it right!
Cheers
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1