GMAT 5/18 wrote:Source: GMAT Prep, mba.com, exam II
I got this question correct by process of elimination as well as drawing it out and making an educated guess. I would like to understand if there is a solid reason (math rule) for this answer. If anyone can help, that would be great.
What is the greatest possible area of a triangular region with one vertex at the center of a circle of radius 1 and the other two vertices on the circle?
I will post the correct answer later (for those of you wishing to try it without seeing the answer first).
GMAT 5/18 wrote:Saurabh,
Geo is definitely one of my favourite area's also, but sometimes it infuriates me when I get a question wrong....so sometimes its my favourite and sometimes my most hated.
The answer to this question is b.
I guessed correctly when I took the 2nd GMAT Prep exam - I simply drew a circle, and a few different triangles within it (according to the criteria given by the question). The one that "looked" to have the largest area was (as you state) an equilateral triangle (with sides of 1, 1, and rt2), the area of which = 1/2.
I think the difficulty of this question would be pretty high, as it was my 15th question and I had only gotten 2 wrong prior to this question. I am not sure how the GMAT Prep or GMAC works exactly, but I would imagine this to be around a 700 or 700+ type question? Maybe not though - it could just as easily be a 650 question.
Anyways, thanks for your help.
GMAT 5/18 wrote:Um, I did alright I guess. Once again, time was a factor. I had to rush through the last 5 questions on the Quant and the last 3 on the Verbal. I really outdid myself on the Verbal (scored a 42; Usually, I score around 38) and performed poorly on the Quant (scored a 44; usually, I score around 48) - Total score: 700.
I guess if I got 700 on the actual exam I wouldn't be dissapointed, but I'd prefer a little higher.
How have you been scoring?
Speaking of silly mistakes, I seem to make 2 (on average) per exam. This time, I worked a problem, found the answer to be E, and clicked on C and clicked confirm! Seriously, it doesn't get worse than that! Just gotta hope the GMAC gods will be kind to be on test day.
agha79 wrote:I am lost on visulizing this as well. is it possible to show the solution with a diagram MGAMT instructors?
We don't need to visualize much on this one,I knew that equilateral triangle should have maximum area..