I. Reguerghe de la forme primitive

a=tgmY T = tgeiY,

-^ = 1(11.12-) eiY = i(2.4'),

Triangle mYe*

w=(Tl0),

sin^|zY = ^^"^>'"^^^2^^"<^--^^l S sm e^Y &in mY

wie4 = 2.l2',

180 — ZX= 100-16' ZX = 79-44'.

* IL Calculs des syhbDles des faces Zone ZY ^ = itgPY, Pr=l ' PY=:iri80--.|.5^ - = 0,5005 = ^,

l=J0"2l|e*, ' Zone X Y

P = IO PY=|A80- 10.13) £ = 0.6674 = 1 IO = |25oU»,

CMINi.

ti*