GMAT Changed on April 16th - Read about the latest changes here

It is currently 23 May 2018, 11:22

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If a wire is bent into the shape of a square, then the area enclosed

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
User avatar
G
Joined: 07 Jun 2017
Posts: 173
Location: India
Concentration: Technology, General Management
GMAT 1: 660 Q46 V38
GPA: 3.6
WE: Information Technology (Computer Software)
GMAT ToolKit User Reviews Badge
If a wire is bent into the shape of a square, then the area enclosed [#permalink]

Show Tags

New post Updated on: 25 Sep 2017, 04:06
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

50% (00:03) correct 50% (00:17) wrong based on 4 sessions

HideShow timer Statistics

If a wire is bent into the shape of a square, then the area enclosed by the square is 81 cm square. When the same wire is bent into semi-circle. then the area of semi circle will be

A. 22 cm square
B . 44 cm square
C. 77 cm square
D. 81 cm square
E. 154 cm square

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

Regards,
Naveen
email: nkmungila@gmail.com
Please press kudos if you like this post


Originally posted by nkmungila on 25 Sep 2017, 03:46.
Last edited by pushpitkc on 25 Sep 2017, 04:06, edited 1 time in total.
Moving into appropriate forum
BSchool Forum Moderator
User avatar
V
Joined: 26 Feb 2016
Posts: 2554
Location: India
GPA: 3.12
Premium Member CAT Tests
Re: If a wire is bent into the shape of a square, then the area enclosed [#permalink]

Show Tags

New post 25 Sep 2017, 04:05
If the wire is bent into the shape of a square and the area is 81 \(cm^2\)
the side of the square is 9 cm. Hence, the perimeter is 4*side = 36 cm

This wire is not bent to form a semicircle which can be given by pi*r + 2*r(where r is the radius of the semicircle)

r(pi + 2) = 36 where pi = \(\frac{22}{7}\)

Therefore, r (\(\frac{36}{7}\)) = 36 => r = 7

The area of the semicircle is \(\frac{1}{2}*pi*r^2 = \frac{1}{2}*\frac{22}{7}*7*7 = 77 cm^2\)(Option C)

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________

You've got what it takes, but it will take everything you've got

Re: If a wire is bent into the shape of a square, then the area enclosed   [#permalink] 25 Sep 2017, 04:05
Display posts from previous: Sort by

If a wire is bent into the shape of a square, then the area enclosed

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.