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formed between two radii with a known angle?
if you understand what I mean; that description feels awkward... :/

Thomas
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Am 12/9/19 2:39 AM, also sprach Thomas de Groot:
> Given a circle with known radius, what is the length of the arc segment
> formed between two radii with a known angle?
>
> if you understand what I mean; that description feels awkward... :/
>
Wouldn't it be some fractional part of the circumference?
given degrees angle a=10, angle b=100 radius r=20
length = pi*r*2*(ba)/360

dik
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Op 09/12/2019 om 10:49 schreef Dick Balaska:
> Am 12/9/19 2:39 AM, also sprach Thomas de Groot:
>> Given a circle with known radius, what is the length of the arc
>> segment formed between two radii with a known angle?
>>
>> if you understand what I mean; that description feels awkward... :/
>>
>
> Wouldn't it be some fractional part of the circumference?
>
> given degrees angle a=10, angle b=100 radius r=20
>
> length = pi*r*2*(ba)/360
>
>
I didn't think of that! Thanks!! :)

Thomas
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Le 20191209 Ã 02:39, Thomas de Groot a Ã©critÂ :
> Given a circle with known radius, what is the length of the arc segment
> formed between two radii with a known angle?
>
> if you understand what I mean; that description feels awkward... :/
>
You only need to convert that angle into radiant, then multiply by the
radius :
Just use the builtin macro :
#declare ArcLength = radians( AngleInDegree ) * Radius;
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Op 10/12/2019 om 01:04 schreef Alain Martel:
> Le 20191209 Ã 02:39, Thomas de Groot a Ã©critÂ :
>> Given a circle with known radius, what is the length of the arc
>> segment formed between two radii with a known angle?
>>
>> if you understand what I mean; that description feels awkward... :/
>>
>
> You only need to convert that angle into radiant, then multiply by the
> radius :
>
> Just use the builtin macro :
>
> #declare ArcLength = radians( AngleInDegree ) * Radius;
>
>
Initially, I had something like that in the back of my mind but was
unable to move it to the front ;)
Thanks indeed; I now have /two/ paths to achieve it.

Thomas
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Alain Martel <kua### [at] videotronca> wrote:
> Le 20191209 Ã 02:39, Thomas de Groot a Ã©critÂ :
> > Given a circle with known radius, what is the length of the arc segment
> > formed between two radii with a known angle?
> >
> > if you understand what I mean; that description feels awkward... :/
> >
>
> You only need to convert that angle into radiant, then multiply by the
> radius :
>
> Just use the builtin macro :
>
> #declare ArcLength = radians( AngleInDegree ) * Radius;
This is good to know!
I came across the other way on my own.
This way is shorter and less likely to have errors!
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