:[ Q3Arena.com Message Board ]: : Cool math question

my profile | register | search | faq | forum home

»	:[ Q3Arena.com Message Board ]: » The Lounge » Cool math question

UBBFriend: Email this page to someone!

Author

Topic: Cool math question

TheKiller
Sarge
Member # 890

Member Rated:

posted 02-07-2004 10:12 PM

It stumped me for the longest time, then it came to me and I solved it in like 3 minutes.

Just wanna see if there are other ways to solve it. I will post my solution after people have a chance to give it a try.

NERDS RULE!

--------------------

Talk is cheap, so is my signature.

Posts: 1723 | From: Gibsons, BC, Canada | Registered: Oct 1999 | IP: Logged

Acid
Sarge
Member # 758

Member Rated:

posted 02-07-2004 10:50 PM

It's simple Geometry..that I completely forget.

Posts: 1306 | From: | Registered: Sep 1999 | IP: Logged

Headstone
Sarge
Member # 3014

Rate Member

posted 02-08-2004 12:36 AM

answer is D

[ 02-08-2004: Message edited by: Headstone ]

--------------------

Yep it really is me.

Posts: 308 | From: Canada | Registered: Oct 2003 | IP: Logged

WillyTrombone
Sarge
Member # 27

Member Rated:

posted 02-08-2004 12:46 AM

~~simple. (1/2)*base*height~~

nm. misread the purpendicularity

[ 02-08-2004: Message edited by: WillyTrombone ]

--------------------

signature

Posts: 2844 | From: the edge of forever | Registered: Jun 1999 | IP: Logged

Druidae
Sarge
Member # 1380

Member Rated:

posted 02-08-2004 01:31 AM

omg math is so behind me now...after I left school I forgot all those math facts they drilled into my head

I can still add though...I'm doing my taxes now

[ 02-08-2004: Message edited by: Druidae ]

Posts: 746 | From: Hell | Registered: Dec 1999 | IP: Logged

AcidWarp
Sarge
Member # 997

Member Rated:

posted 02-08-2004 01:56 AM

Yeah, I got D as well. Heh, as for writing out a solution. I don't think I could, solving was never the problem, but writing out the solution I was never good at. I just balance the numbers in my head.

Took me about 3min Jam.

--------------------

“I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.”

“Intelligence is the ability to adapt to change.”

--Dr. Stephen Hawking.

Posts: 4363 | From: Waterloo, Ontario | Registered: Nov 1999 | IP: Logged

Druidae
Sarge
Member # 1380

Member Rated:

posted 02-08-2004 02:59 AM

this is my first real post.i am the other half.i never got into the hard core math,i was more of a biology and art kind of guy inn school.looking at this thing at i had no idea, stumped i cheated and looked,it did not tell me much at first,but i think i may understand it now.do you take 1/2 of the smallest number(bd), subtract it from the largest number(ce)and then multiply that by the whole small number(bd)?

is this it?
(bd=8)=q (ce=12)=h
.5*q=4-h=8*q=64

it works on this perticular problem,but i am not sure What the hell i am doing.

--------------------

Oh you can expect that, everyone's mad here, you may have noticed I'm not exactly all together myself

Posts: 746 | From: Hell | Registered: Dec 1999 | IP: Logged

Druidae
Sarge
Member # 1380

Member Rated:

posted 02-08-2004 03:09 AM

me again, if there were a line that started at point A, bisected point G, and created a new point(D)where it hit line B,C,can you figure the length of line A,D?

--------------------

Oh you can expect that, everyone's mad here, you may have noticed I'm not exactly all together myself

Posts: 746 | From: Hell | Registered: Dec 1999 | IP: Logged

Snag
Sarge
Member # 992

Member Rated:

posted 02-08-2004 05:50 AM

quote:
Originally posted by Druidae:

is this it?
(bd=8)=q (ce=12)=h
.5*q=4-h=8*q=64

your math would give us a negative area...therefore it is not it

Posts: 2606 | From: Canada | Registered: Nov 1999 | IP: Logged

TheKiller
Sarge
Member # 890

Member Rated:

posted 02-08-2004 06:16 PM

Here's how I did it:

--------------------

Talk is cheap, so is my signature.

Posts: 1723 | From: Gibsons, BC, Canada | Registered: Oct 1999 | IP: Logged

grumpy
Sarge
Member # 1912

Member Rated:

posted 02-08-2004 06:27 PM

il'l see if i can draw what i did on paint =)

--------------------

Posts: 1561 | From: girls! computers, drinking, partying | Registered: Feb 2000 | IP: Logged

TheKiller
Sarge
Member # 890

Member Rated:

posted 02-08-2004 06:37 PM

One tiny error: Triangle BCG = 64/3 Not 48/3. However, The quad still works out to 144/3 cause I had that worked out on another piece of paper which had 64/3 for Triangle BCG.

--------------------

Talk is cheap, so is my signature.

Posts: 1723 | From: Gibsons, BC, Canada | Registered: Oct 1999 | IP: Logged

grumpy
Sarge
Member # 1912

Member Rated:

posted 02-08-2004 07:49 PM

okay

funny to see how aegd = bgc

geomitree ownz me!

--------------------

Posts: 1561 | From: girls! computers, drinking, partying | Registered: Feb 2000 | IP: Logged

TheKiller
Sarge
Member # 890

Member Rated:

posted 02-08-2004 09:24 PM

Nice one grumpy!

Ooops I just noticed that I had a mistake in my recusion.

It should go:
48 + 48/4 + 48/16 + 48/64 + 3/16 + 3/64 + ...
= 48 + 12 + 3 + 3/4 + 3/16 + 3/64 + ...
= 64

[ 02-08-2004: Message edited by: TheKiller ]

--------------------

Talk is cheap, so is my signature.

Posts: 1723 | From: Gibsons, BC, Canada | Registered: Oct 1999 | IP: Logged

TheKiller
Sarge
Member # 890

Member Rated:

posted 02-08-2004 09:41 PM

grumpy one more thing... Notice that Triangle BGC is exactly half the size of your rectangle HAZG... thus

Area ABC = 1.5 times HAZG

= 128/3 * 3/2 = 128/2 = 64

--------------------

Talk is cheap, so is my signature.

Posts: 1723 | From: Gibsons, BC, Canada | Registered: Oct 1999 | IP: Logged

Snag
Sarge
Member # 992

Member Rated:

posted 02-08-2004 09:43 PM

On a multiple choice test you don't have time to do bullshit like that.

That is why MC tests test logical reasoning, not so much your ability to come up with the RIGHT answer.

If it means anything, I had the answer (and yes, it was my final answer...64) within about 15 seconds...incorporating the law of ratios into geometry of course WHY is not important in a MC test hehe

[ 02-08-2004: Message edited by: Snag ]

Posts: 2606 | From: Canada | Registered: Nov 1999 | IP: Logged

grumpy
Sarge
Member # 1912

Member Rated:

posted 02-08-2004 09:56 PM

i don't think i've ever had multiple choice math problems.

but when i do get mc problems, there's always an option (f) none of da aboive

--------------------

Posts: 1561 | From: girls! computers, drinking, partying | Registered: Feb 2000 | IP: Logged

Headstone
Sarge
Member # 3014

Rate Member

posted 02-09-2004 10:19 PM