#FIG 3.2  Produced by xfig version 3.2.5-alpha5
Landscape
Center
Inches
Letter  
100.00
Single
-2
1200 2
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2
	 1200 1200 1200 2400
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2
	 1200 1200 3900 2400
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2
	 1200 1200 3900 1650
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2
	 1200 1200 3900 900
2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2
	 3900 900 3900 2400
4 0 0 50 -1 0 12 0.0000 4 150 150 900 1875 H\001
4 0 0 50 -1 0 12 0.0000 4 150 135 2400 2625 L\001
4 0 0 50 -1 0 12 0.0000 4 150 150 4050 2100 l1\001
4 0 0 50 -1 0 12 0.0000 4 150 150 4050 1350 l2\001
4 0 0 50 -1 0 12 0.0000 4 195 1620 4050 975 15 + alpha degrees\001
4 0 0 50 -1 0 12 0.0000 4 195 1560 4050 2475 15 - alpha degrees\001
4 0 0 50 -1 0 12 0.0000 4 195 1200 4050 1725 alpha degrees\001
4 0 0 50 -1 0 12 0.0000 4 150 45 5775 1725 l\001
4 0 0 50 -1 0 12 0.0000 4 195 1995 1200 3150 L = H / tan (15 + alpha)\001
4 0 0 50 -1 0 12 0.0000 4 195 3990 1200 3600 tan (15 + alpha) = l1 / L, l1 = L tan (15 + alpha)\001
4 0 0 50 -1 0 12 0.0000 4 195 3870 1200 3900 tan (15 - alpha) = l2 / L, l2 = L tan (15 - alpha)\001
4 0 0 50 -1 0 12 0.0000 4 195 3360 1200 4200 l = L (tan (15 + alpha) + tan (15 - alpha)\001
4 0 0 50 -1 0 12 0.0000 4 195 7845 1200 4650 l = H (1 + (tan (15 - alpha) / tan (15 + alpha)), H = l / (1 + (tan (15 - alpha) / tan (15 + alpha)))\001
4 0 0 50 -1 0 12 0.0000 4 195 3960 1200 4950 H = l / (1 + (tan (15 - alpha) / tan (15 + alpha)))\001
4 0 0 50 -1 0 12 0.0000 4 195 3540 1200 5400 L = l / (tan (15 + alpha) + tan (15 - alpha))\001
4 0 0 50 -1 0 12 0.0000 4 195 5745 1200 5850 If alpha = 15, H = L tan (30), H = l, L = l / tan (30); if l = 6', L = 10.4'\001