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

 It is currently 22 May 2019, 02:31

### 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

# In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 55228
In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1  [#permalink]

### Show Tags

26 Nov 2018, 00:44
00:00

Difficulty:

25% (medium)

Question Stats:

80% (01:26) correct 20% (01:30) wrong based on 51 sessions

### HideShow timer Statistics

In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1,-4) , and (-9,-4). What is the perimeter of the quadrilateral?

A. 4
B. 10
C. 20
D. 24
E. 32

_________________
Director
Joined: 18 Jul 2018
Posts: 902
Location: India
Concentration: Finance, Marketing
WE: Engineering (Energy and Utilities)
Re: In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1  [#permalink]

### Show Tags

26 Nov 2018, 00:53
Applying the distance between the points formula.

$$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$$

The distance between the points (-9,-2) & (-1,-2) is $$\sqrt{(-1+9)^2+(-2+2)^2}$$ = 8.

Similarly, for other points, we get the distance as 2,8 and 2.

Hence the perimeter is 8+2+8+2 = 20.

_________________
Press +1 Kudo If my post helps!
Re: In the xy-plane, a quadrilateral has vertices at (-9,-2), (-1,-2) ,(-1   [#permalink] 26 Nov 2018, 00:53
Display posts from previous: Sort by