Questions about the world of GMAT Math from other sources and general math related questions.
howidid
 
 

Challenge Problem - Looks Incorrcet to me. Pls help

by howidid Wed Jun 18, 2008 2:59 pm

Image

I gave the answer as D, but the answer is B.

Can someone explain pls.

Regds,
Deep
shaji
 
 

Re: Challenge Problem - Looks Incorrcet to me. Pls help

by shaji Thu Jun 19, 2008 11:36 am

howidid@gmail.com Wrote:Image

I gave the answer as D, but the answer is B.

Can someone explain pls.

Regds,
Deep

The maximum area a right angled triangle with hypotenuse 6 is 25. Therefore B indeed is the correct answer. A clever trap by the question setter.
shaji
 
 

Re: Challenge Problem - Looks Incorrcet to me. Pls help

by shaji Fri Jun 20, 2008 12:32 pm

shaji Wrote:
howidid@gmail.com Wrote:Image

I gave the answer as D, but the answer is B.

Can someone explain pls.

Regds,
Deep

The maximum area a right angled triangle with hypotenuse 6 is 25. Therefore B indeed is the correct answer. A clever trap by the question setter.


"6" should read 10 in the above post. Regret inconvenience.
geometrically challenged
 
 

Re: Challenge Problem - Looks Incorrcet to me. Pls help

by geometrically challenged Wed Jun 25, 2008 11:13 am

shaji Wrote:
shaji Wrote:
howidid@gmail.com Wrote:Image

I gave the answer as D, but the answer is B.

Can someone explain pls.

Regds,
Deep

The maximum area a right angled triangle with hypotenuse 6 is 25. Therefore B indeed is the correct answer. A clever trap by the question setter.


"6" should read 10 in the above post. Regret inconvenience.


Does this mean that a right triangle with a hypotenuse with a 5, 10, or any multiple of 5 is a 3:4:5 triangle?
Guest
 
 

Re: Challenge Problem - Looks Incorrcet to me. Pls help

by Guest Thu Jun 26, 2008 1:01 am

geometrically challenged Wrote:
shaji Wrote:
shaji Wrote:
howidid@gmail.com Wrote:Image

I gave the answer as D, but the answer is B.

Can someone explain pls.

Regds,
Deep

The maximum area a right angled triangle with hypotenuse 6 is 25. Therefore B indeed is the correct answer. A clever trap by the question setter.


"6" should read 10 in the above post. Regret inconvenience.

3,4 & 5 is indeed a pythagorian triplet. This isn't implied by what I have stated above. The problem is evaluate the maximum possible area for a rightangled triangle of hypotenuse 10, which is 10^2/4=25.

Does this mean that a right triangle with a hypotenuse with a 5, 10, or any multiple of 5 is a 3:4:5 triangle?
rfernandez
Course Students
 
Posts: 381
Joined: Fri Apr 07, 2006 8:25 am
 

by rfernandez Fri Jul 18, 2008 2:34 am

Good work, shaji.

In fact, the right triangle in question (with hypotenuse = 10) would not have its maximum possible area if the side lengths were 6-8-10. The right triangle with the largest area is isosceles, with each leg equaling 5*root(2).