Last visit was: 16 Sep 2026, 15:39 It is currently 16 Sep 2026, 15:39
Home
Messages
Tests
Schools
Events
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel
Back to Forum
Create Topic
555-605 (Medium)|   Geometry|      
User avatar
KSBGC
User avatar
Joined: 31 Oct 2013
Last visit: 10 Mar 2022
Posts: 1,239
Own Kudos:
1,553
 [14]
Given Kudos: 635
Concentration: Accounting, Finance
GPA: 3.68
WE:Analyst (Accounting)
Posts: 1,239
Kudos: 1,553
 [14]
In a rectangle , the length of the diagonal is 8 meters and the length 23 Nov 2019, 21:21
3
Kudos
Add Kudos
11
Bookmarks
Bookmark this Post
00:00
Start Timer
Pause Timer
Resume Timer
Show Answer
Hide
Show
History
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

35% (medium)

Question Stats:

75% (01:47) correct 25% (02:09) wrong based on 95 sessions

History

Date
Time
Result
Not Attempted Yet
In a rectangle , the length of the diagonal is 8 meters and the length of the perpendicular drawn on that diagonal from the opposite corner is 4 meters. What is the area of the rectangle in sq meters ?

A)32
B)16
C)24
D)12
E)64
ShowHide Answer
Official Answer
A
User avatar
chetan2u
User avatar
GMAT Expert
Joined: 02 Aug 2009
Last visit: 16 Sep 2026
Posts: 11,296
Own Kudos:
46,184
 [1]
Given Kudos: 339
Status:Math and DI Expert
Location: India
Concentration: Human Resources, General Management
GMAT Focus 1: 735 Q90 V89 DI81
Products:
My Reviews
Expert
Expert reply
Active GMAT Club Expert! Tag them with @ followed by their username for a faster response.
GMAT Focus 1: 735 Q90 V89 DI81
Posts: 11,296
Kudos: 46,184
 [1]
In a rectangle , the length of the diagonal is 8 meters and the length 23 Nov 2019, 21:50
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
KSBGC
In a rectangle , the length of the diagonal is 8 meters and the length of the perpendicular drawn on that diagonal from the opposite corner is 4 meters. What is the area of the rectangle in sq meters ?

A)32
B)16
C)24
D)12
E)64
Show more


Area of a rectangle = length * breadth when one of these is taken as the base
OR
Area = 2*(1/2*Diagonal*(perpendicular on this diagonal from the opposite vertex))=2*8*4*(1/2)=33

A
User avatar
rajatchopra1994
User avatar
Joined: 16 Feb 2015
Last visit: 22 Jun 2024
Posts: 1,052
Own Kudos:
1,347
 [2]
Given Kudos: 30
Location: United States
Posts: 1,052
Kudos: 1,347
 [2]
In a rectangle , the length of the diagonal is 8 meters and the length 23 Nov 2019, 21:58
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Area of Retangle= 2 × [1/2 x diagonal*(perpendicular on this diagonal)]
=2x8x4x(1/2)
=32

Answer is A

Please give kudos, if you find my explanation good enough

Posted from my mobile device
User avatar
rajatchopra1994
User avatar
Joined: 16 Feb 2015
Last visit: 22 Jun 2024
Posts: 1,052
Own Kudos:
1,347
Given Kudos: 30
Location: United States
Posts: 1,052
Kudos: 1,347
In a rectangle , the length of the diagonal is 8 meters and the length 23 Nov 2019, 22:01
Kudos
Add Kudos
Bookmarks
Bookmark this Post
chetan2u
KSBGC
In a rectangle , the length of the diagonal is 8 meters and the length of the perpendicular drawn on that diagonal from the opposite corner is 4 meters. What is the area of the rectangle in sq meters ?

A)32
B)16
C)24
D)12
E)64


Area of a rectangle = length * breadth when one of these is taken as the base
OR
Area = 2*(1/2*Diagonal*(perpendicular on this diagonal from the opposite vertex))=2*8*4*(1/2)=33


A
Show more

chetan2u , you made calulation mistake.. answer is 32. You written as 33. Which is not in options.

Regards,
Rajat

Posted from my mobile device
User avatar
OC2910
User avatar
Joined: 04 Apr 2015
Last visit: 09 Feb 2023
Posts: 230
Own Kudos:
146
Given Kudos: 269
GMAT 1: 650 Q49 V31
GPA: 3.59
Products:
My Reviews
GMAT 1: 650 Q49 V31
Posts: 230
Kudos: 146
In a rectangle , the length of the diagonal is 8 meters and the length 24 Nov 2019, 04:57
Kudos
Add Kudos
Bookmarks
Bookmark this Post
chetan2u
KSBGC
In a rectangle , the length of the diagonal is 8 meters and the length of the perpendicular drawn on that diagonal from the opposite corner is 4 meters. What is the area of the rectangle in sq meters ?

A)32
B)16
C)24
D)12
E)64


Area of a rectangle = length * breadth when one of these is taken as the base
OR
Area = 2*(1/2*Diagonal*(perpendicular on this diagonal from the opposite vertex))=2*8*4*(1/2)=33

A
Show more

sir typing error ho gaya
User avatar
ShahadatHJ
User avatar
Joined: 14 Aug 2019
Last visit: 15 Sep 2026
Posts: 155
Own Kudos:
131
Given Kudos: 256
Location: Bangladesh
GPA: 3.41
Posts: 155
Kudos: 131
In a rectangle , the length of the diagonal is 8 meters and the length 22 Nov 2021, 21:30
Kudos
Add Kudos
Bookmarks
Bookmark this Post
rajatchopra1994
Area of Retangle= 2 × [1/2 x diagonal*(perpendicular on this diagonal)]
=2x8x4x(1/2)
=32

Answer is A

Please give kudos, if you find my explanation good enough

Posted from my mobile device
Show more
Sir, is this a formula? Why is it so different?
User avatar
GMATCoachBen
User avatar
Joined: 21 Mar 2017
Last visit: 16 Sep 2026
Posts: 462
Own Kudos:
3,469
 [2]
Given Kudos: 217
Status:Professional GMAT Trainer
Affiliations: GMAT Coach
Location: United States (WA)
GMAT Focus 1: 775 Q87 V90 DI88 (Online)
GMAT 1: 760 Q50 V44
GMAT 2: 770 Q51 V44
GMAT 3: 770 Q50 V44
GMAT 4: 770 Q50 V45 (Online)
GMAT 5: 780 Q51 V48
Expert
Expert reply
GMAT Focus 1: 775 Q87 V90 DI88 (Online)
GMAT 5: 780 Q51 V48
Posts: 462
Kudos: 3,469
 [2]
In a rectangle , the length of the diagonal is 8 meters and the length 22 Nov 2021, 22:21
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
ShahadatHJ
rajatchopra1994
Area of Retangle= 2 × [1/2 x diagonal*(perpendicular on this diagonal)]
=2x8x4x(1/2)
=32

Answer is A

Please give kudos, if you find my explanation good enough

Posted from my mobile device
Sir, is this a formula? Why is it so different?
Show more
Hi ShahadatHJ, the formula above is for two triangles. It's the easiest way to solve, because the problem gives you the base and height for 2 congruent triangles. We can think of the diagonal as the base, and the "perpendicular drawn on that diagonal" as the height.
User avatar
ShahadatHJ
User avatar
Joined: 14 Aug 2019
Last visit: 15 Sep 2026
Posts: 155
Own Kudos:
131
 [1]
Given Kudos: 256
Location: Bangladesh
GPA: 3.41
Posts: 155
Kudos: 131
 [1]
In a rectangle , the length of the diagonal is 8 meters and the length 22 Nov 2021, 22:27
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
GMATCoachBen
ShahadatHJ
rajatchopra1994
Area of Retangle= 2 × [1/2 x diagonal*(perpendicular on this diagonal)]
=2x8x4x(1/2)
=32

Answer is A

Please give kudos, if you find my explanation good enough

Posted from my mobile device
Sir, is this a formula? Why is it so different?
Hi ShahadatHJ, the formula above is for two triangles. It's the easiest way to solve, because the problem gives you the base and height for 2 congruent triangles. We can think of the diagonal as the base, and the "perpendicular drawn on that diagonal" as the height.
Show more
Now, it makes sense, thank you very much. It was itching me for a while. :)
User avatar
adityasuresh
User avatar
Joined: 03 May 2020
Last visit: 22 May 2026
Posts: 107
Own Kudos:
49
Given Kudos: 512
Posts: 107
Kudos: 49
In a rectangle , the length of the diagonal is 8 meters and the length 10 Mar 2023, 20:43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
When a diagonal is drawn in a rectangle it forms a 45-45-90 triangle in the ratio x:x:root2X. We are given the length of the diagonal as 8, this is the length of the side opposite to 90 degreee, equate it to root2X. We find x =4root2.
Therefore are of rectangle =(4root2)^2 =32
Attachments

File comment: Pfa
7EEC5DFE-6C6F-4664-AB59-7932FEE8217F.jpeg
7EEC5DFE-6C6F-4664-AB59-7932FEE8217F.jpeg [ 392.05 KiB | Viewed 2117 times ]

User avatar
bumpbot
User avatar
Non-Human User
Joined: 09 Sep 2013
Last visit: 04 Jan 2021
Posts: 39,225
Own Kudos:
1,160
Posts: 39,225
Kudos: 1,160
In a rectangle , the length of the diagonal is 8 meters and the length 13 Sep 2024, 09:19
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Automated notice from GMAT Club BumpBot:

A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.

This post was generated automatically.
Moderator:
Bunuel
Math Expert
113597 posts