View Full Version : Math Problem for the Nerds
Javery
08-11-2004, 09:40 AM
If a TV is 25 inches diagonally, what is it's width? Keep in mind that the height to width ratio is 4:3 on a regular TV. I can't believe I can't figure this out... I know there is something like a^2+b^2=c^2 and c^2=25 in this case and a/b=4/3 and then there are some substitutions or something... am I doing this right?
Javery
08-11-2004, 09:43 AM
OK, I think it's just a 3-4-5 triangle so the width is 16", correct? Math is melting my brain!!!!
thegamer4787
08-11-2004, 09:49 AM
Just measure.
LV-426RS
08-11-2004, 09:50 AM
Are you just trying to find out if the TV will fit in an opening? If so I would just take a tape measure, or a string with markings if you don't want to lug the tape measure around.
int80h
08-11-2004, 10:00 AM
OK, I think it's just a 3-4-5 triangle so the width is 16", correct? Math is melting my brain!!!!
25/5 = x/4
x=20"
thestuff
08-11-2004, 10:27 AM
^ Yup, he's right. One side will be 20, the other 15.
Backlash
08-11-2004, 10:29 AM
That won't really work on real-world TVs, only on ideal triangles. In the real world TVs all have different amounts of molding and stuff around the edges. Newer flat-screen TVs typically have speakers on the side as well. You better use a tape measure.
LV-426RS
08-11-2004, 10:31 AM
^ I'm not saying he's right or wrong... but your figures on his equation are all wrong.
*EDIT* This was intended for thestuff's post.
Fatesealer
08-11-2004, 10:45 AM
It's WAY too early for learning stuff... Pythagorean theorems are for wussie crybabies... :twisted:
sblymnlcrymnl
08-11-2004, 01:55 PM
How is that even difficult enough to be classified "for nerds"?
zman73
08-11-2004, 01:58 PM
on a right angle triangle
a squared + b squared = c squared
and there are special ones listed before like the 3,4,5 triangles
Cornfedwb
08-11-2004, 02:01 PM
Techincally yes, in a true 3:4:5 triangle, the width of a 25" diagonal is 20", but tv's A. are not true 4:3 ratio (they're close) and B. as said before, there is trim around the screen that make the width larger.
darkmere
08-11-2004, 02:04 PM
is this the traditional 4:3 or widescreen 16:9 format? and does it have speakers on the side or is it just a monitor? too many factors...the correct answer is not enough information