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seen Jun 4 at 12:59

Jan
31
awarded  Scholar
Jan
31
awarded  Supporter
Jan
31
accepted How do I solve this trigonometry?
Jan
31
comment How do I solve this trigonometry?
Phytagoras - perfect, thanks.
Jan
30
revised How do I solve this trigonometry?
added 42 characters in body
Jan
30
comment How do I solve this trigonometry?
Sorry, too late, you're perfectly right. Solving for "RH" (not R*H). Good night.
Jan
30
comment How do I solve this trigonometry?
Typo in OP, corrected, sorry..
Jan
30
revised How do I solve this trigonometry?
added 8 characters in body
Jan
30
comment How do I solve this trigonometry?
H is known, (21), L known:1330, R unknown (15500).
Jan
30
comment How do I solve this trigonometry?
The best I can come up with is L/2 / (R-H) = tan(L / 2R)
Jan
30
comment How do I solve this trigonometry?
Suceeded in simplifying to: L = 2R * arctan((L/2) / (R-H)). Puzzled from here..
Jan
30
revised How do I solve this trigonometry?
deleted 23 characters in body
Jan
30
comment How do I solve this trigonometry?
Yes, I belive You're right here. Think of a line crossing close ot border of a circle. H is the small (maximum) distance between the circle and line. L is the length of the line. I want the radius of the circle.
Jan
30
comment How do I solve this trigonometry?
@JosephSkelton, yes, that's correct.
Jan
30
awarded  Custodian
Jan
30
revised How do I solve this trigonometry?
added 136 characters in body
Jan
30
reviewed Approve suggested edit on How do I solve this trigonometry?
Jan
30
comment How do I solve this trigonometry?
@user1709828, ah; no RH is NOT R*H, please se elaboration
Jan
30
awarded  Editor
Jan
30
revised How do I solve this trigonometry?
added 8 characters in body