GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 16 Jun 2019, 22:11 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

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.  In the semicircle with center O, which of the following is the best es

Author Message
TAGS:

Hide Tags S
Joined: 06 Mar 2017
Posts: 194
Concentration: Operations, General Management
In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

1
2 00:00

Difficulty:   45% (medium)

Question Stats: 63% (02:07) correct 37% (02:09) wrong based on 78 sessions

HideShow timer Statistics

In the semicircle with center O, which of the following is the best estimate for the distance between points P and Q?

(A).33
(B)1.42
(C)1.73
(D)2.65
(E)2.82

Attachments image.JPG [ 3.78 KiB | Viewed 862 times ]

Originally posted by targetbusiness on 14 Aug 2018, 05:51.
Last edited by targetbusiness on 14 Aug 2018, 06:15, edited 1 time in total.
Intern  B
Joined: 13 Aug 2018
Posts: 1
Re: In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

1
1
Its a right angle triangle with 2 sides being 2 each. Using pythagoras, hypotenuse PQ would be 2.82
Math Expert V
Joined: 02 Aug 2009
Posts: 7742
Re: In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

3
siddreal wrote:
In the semicircle with center O, which of the following is the best estimate for the distance between points P and Q?

(A).33
(B)1.42
(C)1.73
(D)2.65
(E)2.82

OPQ is isosceles right angled triangle so PQ =2√2=2*1.4=2.8

E
_________________
VP  D
Status: Learning stage
Joined: 01 Oct 2017
Posts: 1009
WE: Supply Chain Management (Energy and Utilities)
Re: In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

abhishekgup wrote:
Its a right angle triangle with 2 sides being 2 each. Using pythagoras, hypotenuse PQ would be 2.82

$$hypotenuse=2*\sqrt{2}=2.82$$ (Approx.)
_________________
Regards,

PKN

Rise above the storm, you will find the sunshine
Manager  B
Joined: 28 Jun 2018
Posts: 74
Re: In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

chetan2u hi this might seem like a stupid question but for the life of me i can't understand how you got the radius to be 2?
Math Expert V
Joined: 02 Aug 2009
Posts: 7742
Re: In the semicircle with center O, which of the following is the best es  [#permalink]

Show Tags

1
1
hibobotamuss wrote:
chetan2u hi this might seem like a stupid question but for the life of me i can't understand how you got the radius to be 2?

Hi..
Point P is on circumference and center is origin..
So the radius is the distance of P from origin..
P is given as (-√3,1) that is x is -√3 and y is 1 so it's a right angled triangle at 0 with sides -√3 and 1 and radius is the hypotenuse
$$r^2=(-√3)^2+1^2=3+1=4.....r=2$$
_________________ Re: In the semicircle with center O, which of the following is the best es   [#permalink] 13 Sep 2018, 06:05
Display posts from previous: Sort by

In the semicircle with center O, which of the following is the best es  