ORIGINAL: Avaiojet
Anyone kind enough to take a moment to point out my error ?
Zor,
Why are you so quick to think it's your error? I make mistakes too. Well.
I don't bother with that kind of "real" math.
I added 11.5 to 7.5 then multiplied it times the span then devided by two.
Hi again Avaiojet,
I first calculated in maths only since I had not seen a figure in the thread.
When I saw a different answer I went to software that can draw and calculate for me.
So I printed it, scanned it and posted the drawing.
I was not "so quick to think it was my error". It takes time to draw this up, print it and scan it to get a ".jpg" picture to post.
I am a "slow poke"

.
Best 2 U de Zor.