Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Apr 2912:30 AM EDT
-01:30 AM EDT
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
Apr 3001:30 AM EDT
-02:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
May 0111:00 AM PDT
-12:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
May 0306:30 AM PDT
-08:30 AM PDT
Verbal trouble on GMAT? Fix it NOW! Join Sunita Singhvi for a focused webinar on actionable strategies to boost your Verbal score and take your performance to the next level.
14 Sep 2018, 01:54
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
44% (02:55) correct
56%
(02:36)
wrong
based on 32
sessions
History
Date
Time
Result
Not Attempted Yet
If A and B are tangent to the circle with center O as shown in the figure above, and AD has a length of 5 and AC has a length of 13, what is the radius of the circle?
A. 25/12
B. 65/12
C. \(\sqrt{34}\)
D. \(\sqrt{41}\)
E. \(\sqrt{50}\)
Attachment:
image036.jpg [ 2.86 KiB | Viewed 3359 times ]
14 Sep 2018, 02:11
Kudos
Bookmarks
Bunuel
Triangle ADC is a right angle triangle with AC = 13 and AD = 5 i.e. CD = 12
Triangles ACD and OAD are similar triangle as per the property derived in attachment
hence,
AD / CD = OA / AC
OA = Radius = (5/12)*13 = 65/12
Answer: option B
Attachments
File comment: www.GMATinsight.com
Geometry 7 Similar Triangle Latest.jpg [ 195.88 KiB | Viewed 3151 times ]
10 Feb 2022, 08:28
Kudos
Bookmarks
Hi,
definetly not easy, especially if one doesn't know about the alternate angle theorem. But applying the AAT, we can get the drawing below and the solution:
definetly not easy, especially if one doesn't know about the alternate angle theorem. But applying the AAT, we can get the drawing below and the solution:
Attachments
IMG_20220210_162619.JPG [ 3.58 MiB | Viewed 2460 times ]
