Geometry help.

[Defib1961]

I never was good at geometry. Someone would ask me to find an angle, all I could do was point at a crooked line and say, "There it is."

So here is the question: Side "A" is 6 inches long, Hypotnuese is 29.5 inches long, Side B is 29 inches long. What the hell is my angle?

23958

TIA!

[MrPeabody]

I was very good at geometry. But that was 50 years ago.:leaving:

[99 pewtercoupe]

https://www.mathsisfun.com/algebra/trig-finding-angle-right-triangle.html

[DAB]

I never was good at geometry. Someone would ask me to find an angle, all I could do was point at a crooked line and say, "There it is."

So here is the question: Side "A" is 6 inches long, Hypotnuese is 29.5 inches long, Side B is 29 inches long. What the hell is my angle?

23958

TIA!

sine = opposite/hypotenuese

sine of small angle = 6/29.5 = 0.23389

so angle = 11.74 degrees.

[Cybercowboy]

sin(a) = 6/29.5

a = 11.73 degrees

The other angle is 90-11.73 = 78.27 degrees

[Cybercowboy]

To work it out just using the two sides (not the hypotenuse) then it would be:

tan(a) = y/x = 6/29

a = arctan(6/29) = 11.69 degrees

I'm thinking this is really your angle since there's no way your hypotenuse is 29.5 with the other two sides being 29 and 6 respectively. There's a measurement error there. I mean, it's probably very close to 29.5, but if the other two sides are precisely 29 and 6 respectively, the hypotenuse is actually:

sqrt(6^2 + 29^2) = 29.61 inches.

[DAB]

if you don't have a calculator handy, you can also solve this on the slide rule, using the C and D scales to find 6/29.5 = 0.203, and then flipping it over to read the angle off the S scale = 11.74 degrees.

:dance:

[Cybercowboy]

And children, always remember, all you need to totally know everything about a right triangle is, other than it's a right triangle, is two more pieces of information. The length of any two sides, or a side length and an angle. That's it!

[69camfrk]

Hope this helps...:D

23959

[StaticCling]

Hypotnuese

That's racist!

[JRD77VET]

I never was good at geometry. Someone would ask me to find an angle, all I could do was point at a crooked line and say, "There it is."

So here is the question: Side "A" is 6 inches long, Hypotnuese is 29.5 inches long, Side B is 29 inches long. What the hell is my angle?

23958

TIA!

With side "a" at 6" long and the hypotenuse at 29.5 inches long, angle "A" is 11.735°

Right Scalene Triangle
Side a = 6
Side b = 28.88339
Side c = 29.5

Angle ∠A = 11.735° = 11°44'7" = 0.20482 rad
Angle ∠B = 78.265° = 78°15'53" = 1.36598 rad
Angle ∠C = 90° = 1.5708 rad = π/2


With side "a" at 6" long and side "b" at 29" long, angle "A" is 11.689°

Right Scalene Triangle
Side a = 6
Side b = 29
Side c = 29.61419

Angle ∠A = 11.689° = 11°41'22" = 0.20402 rad
Angle ∠B = 78.311° = 78°18'38" = 1.36678 rad
Angle ∠C = 90° = 1.5708 rad = π/2


~~~~~~~~~~~~~~~~~~~~

I used this on line calculator to copy the info for pasting
https://www.calculator.net/triangle-calculator.html

I also used my machinist calculator and came up with the same values.
https://www.ebay.com/itm/Calculated-Industries-Machinist-Calc-Pro-2-4088-Calculator-with-Armadillo-Case/251731387048?epid=219579344&hash=item3a9c5c22a8:g:n~AAAOSwiCRUc4Uh:sc:USPSFirstClass!18092!US!-1&frcectupt=true

Now if I was making this part for you, you would have gotten a phone call or an email asking which values to use. :toetap:

[snide]

42. :leaving:

[DAB]

With side "a" at 6" long and the hypotenuse at 29.5 inches long, angle "A" is 11.735°

Right Scalene Triangle
Side a = 6
Side b = 28.88339
Side c = 29.5

Angle ∠A = 11.735° = 11°44'7" = 0.20482 rad
Angle ∠B = 78.265° = 78°15'53" = 1.36598 rad
Angle ∠C = 90° = 1.5708 rad = π/2


With side "a" at 6" long and side "b" at 29" long, angle "A" is 11.689°

Right Scalene Triangle
Side a = 6
Side b = 29
Side c = 29.61419

Angle ∠A = 11.689° = 11°41'22" = 0.20402 rad
Angle ∠B = 78.311° = 78°18'38" = 1.36678 rad
Angle ∠C = 90° = 1.5708 rad = π/2


~~~~~~~~~~~~~~~~~~~~

I used this on line calculator to copy the info for pasting
https://www.calculator.net/triangle-calculator.html

I also used my machinist calculator and came up with the same values.
https://www.ebay.com/itm/Calculated-Industries-Machinist-Calc-Pro-2-4088-Calculator-with-Armadillo-Case/251731387048?epid=219579344&hash=item3a9c5c22a8:g:n~AAAOSwiCRUc4Uh:sc:USPSFirstClass!18092!US!-1&frcectupt=true

Now if I was making this part for you, you would have gotten a phone call or an email asking which values to use. :toetap:

Slide rule! :dance:

[JRD77VET]

Slide rule! :dance:

I haven't handled a slide rule since junior high school.
:leaving:

[DAB]

I haven't handled a slide rule since junior high school.
:leaving:

Have one on my desk. Been learning how to use it lately.

[StaticCling]

I haven't handled a slide rule since junior high school.
:leaving:

I've got a friend that was on a slide rule kick a few years ago. Buying them at flea markets and antique stores. He was hell bent on ignoring modern technology.

When he finally got a smart phone, he downloaded a rotary dial app for it. :funnier:

[MikeB]

That's racist!
This is what I imagine........




https://www.nueskes.com/assets/1/20/DimRegular/712_Smoked_Bacon_Super_Sampler_900x900.jpg

[JRD77VET]

I've got a friend that was on a slide rule kick a few years ago. Buying them at flea markets and antique stores. He was hell bent on ignoring modern technology.

When he finally got a smart phone, he downloaded a rotary dial app for it. :funnier:

Tell him if he had a real rotary phone, he could dial just by clicking the button on the cradle that hangs it up :yesnod:

[mrvette]

I have an old ATT stepper relay laying around here...that means I am without question the most biggest nerd here in this group.....

Hell, I even have a Klystron Oscillator tube on the window sill.....

[Olustee bus]

I often make use of hypotenuse while squaring construction. I don't know what the hell it is but I use it somehow.

[JRD77VET]

I often make use of hypotenuse while squaring construction. I don't know what the hell it is but I use it somehow.

I use it to double check hole locations when machining odd shaped items :yesnod:

So if "a" is 4 and "b" is 3, then "c" is 5.

(a) 4 x 4 =16
(b) 3 x 3 =9
------------------
25

The square root of 25 is 5

~~~~~~~~~~~~~~~~~~~~~~~~

To show how it works for hole locations, if it's a 1/2" hole where "a" and "c" insect and also where "b" and "c" insect, then I would subtract each hole radii ( since they are the same size this time, then subtract the hole diameter ) and I should measure exactly 4.500 ( 4-1/2" ) in the inside edges of the hole.


and if I screwed up, send it to the welder so I can try again :lol:
:leaving:

[Olustee bus]

I use it to double check hole locations when machining odd shaped items :yesnod:

So if "a" is 4 and "b" is 3, then "c" is 5.

(a) 4 x 4 =16
(b) 3 x 3 =9
------------------
25

The square root of 25 is 5

~~~~~~~~~~~~~~~~~~~~~~~~

To show how it works for hole locations, if it's a 1/2" hole where "a" and "c" insect and also where "b" and "c" insect, then I would subtract each hole radii ( since they are the same size this time, then subtract the hole diameter ) and I should measure exactly 4.500 ( 4-1/2" ) in the inside edges of the hole.


and if I screwed up, send it to the welder so I can try again :lol:
:leaving:

Alrighty then!:dance:

[ToolMaker]

I remember the square root of 69 = ate something! :D

[mrvette]

I know watt a slipstick is, butt dunno nuttin about a rong triangle....


:dance: