Trig people enter here

[MDCmotorsports]

Its been since 1998 that Ive had to use Trig.

You don't use it, you loose it.

Somebody find x and y for me. Ive come up with too many answers to be correct...

 

[swaq]

Law of Sines: http://www.ies.co.jp/math/java/trig/seigen/seigen.html

X = (sin(35)*4.925)/sin(100) = 2.868442029"
Y = (sin(45)*4.925)/sin(100) = 3.536224087"

 

[pimptrizkit]

edit** Looks like swaq saw the picture =P

 

[Doward]

If I see the pic, I can tell you

 

[MDCmotorsports]

Its there now...

 

[Ckanderson]

found em.

please send a half gallon of moonshine to my addy.

Thanks.

 

[MDCmotorsports]

Very funny.

I told you, you come back here and I'll have all the shine you can drink. ;-)

 

[Doward]

Yes, Law of Sines in this.

X / (sin35) = 4.925 / (sin100)

Y / (sin45) = 4.925 / (sin100)

Although technically, it should be 4.9244289 (square root of 24.25), so your answers are as follows:
x = 2.86810941
y = 3.53581403



Wait wait wait... two 45 degree angles in the triangle = isosceles triangle = the sides are BOTH 4.5".

This means that hypotenuse = sqrt(4.5^2 + 4.5^2) = sqrt(40.5) = 6.363961" (NOT 4.925")
So:


X / (sin35) = 6.363961 / (sin100)
X = 3.70652857"

Y / (sin45) = 6.363961 / (sin100)
Y = 4.56941973"

Either your width between the two rectangles on the left are incorrect, or the length is incorrect. Or the inside angles

 

[swaq]

Oh good catch, I just looked at the numbers that mattered for calculating X and Y, I didn't check to see if the other numbers made sense...

 

[Doward]

I do the same thing when I'm building anything, so it's second nature to check everyone else's numbers to me

Jon - you really want to double check your diagram buddy. Gonna be awful disappointed when you go to build whatever you are building

 

[MK3Brent]

Sweet manifold spacer.

 

[OneJoeZee]

Wait wait wait... two 45 degree angles in the triangle = isosceles triangle = the sides are BOTH 4.5".

Word

 

[Doward]

Word

Wow Joe, I didn't know you knew basic geometry! :sarcasm:

 

[OneJoeZee]

I thought I had forgotten that trig stuff. I'm being forced to remember it right now in my calc2 class. ::hang::

I hate trig but I know an isosceles triangle when I see one(or should).

 

[Doward]

lol. I loved trig (I actually find uses for it daily) but Calculus? Fuck that. Calc 2 made no sense to me (only got a B) but Calc 3 is much much better. I can definitely see uses for 3 dimensional calculus, as I could actually use it to better set up fluid dynamics of air through my intercooler, or exhaust out of the turbine section.

Use trig daily for building things, though!

 

[Ckanderson]

i HATE math.

 

[Doward]

i HATE math.

Math lets you build stuff!

 

[MDCmotorsports]

My math is indeed wrong... I'll have to change the cad drawing in the morning...

 

[SupraDerk]

Math lets you build stuff!

and destroy stuff

 

[MDCmotorsports]

Correct immage posted. I need to know what X is.