Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: Help on Radius of Arc

At 22:53 11/16/97 -0500, you wrote:
...from the geometry, I get the two
equations:
h/(2r)=sin(T/2) and s/r=T, where h=chord length, s=arc length,
T=subtended angle.

Bob Sciamanda

By inspection, I reckon the half chord divided by the radius
is the tangent (half central angle)

i.e
h/(2r) = tan(T/2)

Sincerely

brian whatcott <inet@intellisys.net>
Altus OK