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

 It is currently 15 Oct 2019, 17:05

### 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

# What is the length of CB in right triangle ABC? (1) The length of AB

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 58340
What is the length of CB in right triangle ABC? (1) The length of AB  [#permalink]

### Show Tags

18 Sep 2018, 21:53
00:00

Difficulty:

55% (hard)

Question Stats:

50% (01:13) correct 50% (01:01) wrong based on 54 sessions

### HideShow timer Statistics

What is the length of CB in right triangle ABC?

(1) The length of AB is 2.
(2) The length of AC is $$2\sqrt{3}$$.

_________________
Senior Manager
Joined: 10 Jan 2013
Posts: 294
Location: India
Concentration: General Management, Strategy
GPA: 3.95
Re: What is the length of CB in right triangle ABC? (1) The length of AB  [#permalink]

### Show Tags

26 Sep 2018, 04:36
So i got this question wrong..

Both the statements are insufficient.

Taking both.. one fits the 30 60 90 rule..
But if the vertices are chosen differently, the answer is different..
So E

Posted from my mobile device
Intern
Joined: 11 Nov 2017
Posts: 1
Re: What is the length of CB in right triangle ABC? (1) The length of AB  [#permalink]

### Show Tags

26 Sep 2018, 05:37
1. AB = 2 - insufficient
2. AC = 2√3 - insufficient

1 & 2: pythagorean theorem
AB²+BC²=CD² => 4+BC2²=12=> BC=2√2
or
AB²+CD²=BC² => 4+12=BC² => BC=4

insufficient - E
Re: What is the length of CB in right triangle ABC? (1) The length of AB   [#permalink] 26 Sep 2018, 05:37
Display posts from previous: Sort by

# What is the length of CB in right triangle ABC? (1) The length of AB

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

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