Newbie
Joined: 07/10/2005
Location: AustraliaPosts: 34
| Posted: 10:42am 20 Oct 2005 |
Yeehaw, trig isn't as hard as I remember it!, theres a massive amount of info on the net.
If my understanding of your problem is correct, then I've found a nice little way to work out the ground length, thats if the mast/wire angle is known, and the mast/ground angle is known, and the mast hight is known.
It's simple ratio's:
The mentioned table is here:
http://www.themathpage.com/aTrig/trigonometric-table.htm
So, for this example, if the 766 is the mast and the 423 is the ground, then the ground length is 423/766 = 55.2% of the mast height. Nice.
to quote the website:
'The sides of a triangle are to one another in the same ratio as the sines of their opposite angles' - the Sine Law apparently!
Ok, hope that helps, sorry for the multiple posts, and all the thinking out-aloud!
Simo
Edit: stupid link wouldnt link! Gonna try metatags.