1. Trace le segment [EF] de longueur 4 cm.
2. Trace la droite (d) perpendiculaire à [EF] 
     et passant par E, puis code l'angle droit.
3. Trace le cercle (C) de centre F et de rayon 6 cm.
4. Marque le point G à l'intersection de (d) et(C),
    puis trace les segments [GE] et [GF].

(d)

(C)

tracé1: PolyLine[(-1.0160E1,-3.5000E-1), (-1.0080E1,-3.5000E-1), (-9.7200E0,-3.5000E-1), (-9.5400E0,-3.5000E-1), (-9.4400E0,-3.7000E-1), (-9.3600E0,-3.9000E-1), (-8.4200E0,-3.9000E-1), (-7.5800E0,-3.9000E-1), (-7.3700E0,-3.8000E-1), (-7.2600E0,-3.5000E-1), (NaN,NaN), (-1.0180E1,-3.9000E-1), (-1.0180E1,-3.1000E-1), (-1.0160E1,-2.1000E-1), (-1.0120E1,-1.1000E-1), (-1.0100E1,-1.0000E-2), (-1.0090E1,1.2000E-1), (-1.0060E1,2.1000E-1), (-1.0040E1,3.3000E-1), (-1.0040E1,4.3000E-1), (-1.0030E1,5.4000E-1), (-1.0000E1,6.5000E-1), (-1.0000E1,1.4500E0), (-1.0010E1,1.6400E0), (-1.0020E1,2.1700E0), (-1.0020E1,2.3500E0), (-1.0040E1,3.0500E0), (-1.0040E1,3.2700E0), (-1.0060E1,3.8900E0), (-1.0060E1,4.0700E0), (-1.0080E1,4.1700E0), (-1.0050E1,4.2800E0), (-9.9400E0,4.1600E0), (-9.8600E0,4.0700E0), (-9.8100E0,3.9600E0), (-9.7400E0,3.8400E0), (-9.7000E0,3.7500E0), (-9.6400E0,3.6500E0), (-9.5700E0,3.5100E0), (-9.5400E0,3.4100E0), (-9.5000E0,3.3300E0), (-9.4300E0,3.2200E0), (-9.3700E0,3.1000E0), (-9.3100E0,2.9700E0), (-9.1200E0,2.6300E0), (-9.0400E0,2.4900E0), (-8.9400E0,2.2300E0), (-8.8800E0,2.0800E0), (-8.8000E0,1.9300E0), (-8.7400E0,1.8100E0), (-8.6200E0,1.6300E0), (-8.5400E0,1.5100E0), (-8.4400E0,1.3900E0), (-8.3400E0,1.2500E0), (-8.2400E0,1.1300E0), (-8.1500E0,1.0000E0), (-8.0600E0,8.7000E-1), (-8.0000E0,7.5000E-1), (-7.8600E0,5.5000E-1), (-7.7800E0,4.3000E-1), (-7.7400E0,3.5000E-1), (-7.6800E0,2.5000E-1), (-7.6600E0,1.7000E-1), (-7.6200E0,7.0000E-2), (-7.5800E0,-1.0000E-2), (-7.5000E0,-1.3000E-1), (-7.3900E0,-2.6000E-1), (-7.3000E0,-3.1000E-1), (NaN,NaN), true]
tracé2: PolyLine[(-1.0000E1,2.5000E-1), (-9.9200E0,2.5000E-1), (-9.8400E0,2.5000E-1), (-9.7300E0,2.4000E-1), (-9.5800E0,2.3000E-1), (-9.4500E0,2.0000E-1), (-9.4600E0,6.0000E-2), (-9.4900E0,-8.0000E-2), (-9.5000E0,-1.9000E-1), (-9.5000E0,-2.7000E-1), (NaN,NaN), true]
tracé3: PolyLine[(-1.0480E1,-1.0300E0), (-1.0480E1,-1.1100E0), (-1.0480E1,-1.2100E0), (-1.0440E1,-1.2700E0), (-1.0340E1,-1.2700E0), (-1.0260E1,-1.2700E0), (-1.0200E1,-1.2500E0), (NaN,NaN), (-1.0440E1,-1.0900E0), (-1.0380E1,-1.0700E0), (-1.0300E1,-1.0700E0), (-1.0220E1,-1.0700E0), (-1.0160E1,-1.0500E0), (NaN,NaN), (-1.0480E1,-9.5000E-1), (-1.0420E1,-8.9000E-1), (-1.0360E1,-8.3000E-1), (-1.0340E1,-7.7000E-1), (-1.0280E1,-7.5000E-1), (-1.0220E1,-7.7000E-1), (-1.0140E1,-7.7000E-1), (NaN,NaN), (-7.3800E0,-7.7000E-1), (-7.3800E0,-8.5000E-1), (-7.3800E0,-9.7000E-1), (-7.4100E0,-1.0900E0), (-7.4600E0,-9.3000E-1), (-7.4600E0,-8.5000E-1), (-7.4100E0,-7.6000E-1), (-7.3200E0,-7.1000E-1), (-7.2400E0,-6.9000E-1), (-7.1300E0,-6.4000E-1), (-7.0400E0,-6.1000E-1), (NaN,NaN), (-7.4200E0,-8.9000E-1), (-7.3400E0,-8.9000E-1), (-7.2800E0,-8.5000E-1), (-7.2000E0,-8.5000E-1), (-7.1400E0,-8.7000E-1), (-7.0800E0,-8.9000E-1), (NaN,NaN), true]
tracé4: PolyLine[(-1.0780E1,4.7100E0), (-1.0840E1,4.7300E0), (-1.0950E1,4.7000E0), (-1.1050E1,4.6000E0), (-1.1100E1,4.5100E0), (-1.1100E1,4.4300E0), (-1.1050E1,4.3300E0), (-1.0940E1,4.2900E0), (-1.0840E1,4.2500E0), (-1.0740E1,4.3000E0), (-1.0730E1,4.4100E0), (-1.0820E1,4.4500E0), (-1.0900E1,4.4500E0), (NaN,NaN), true]
tracé5: PolyLine[(-8.8200E0,-7.1000E-1), (-8.9100E0,-8.2000E-1), (-9.0100E0,-9.4000E-1), (-9.1100E0,-1.0800E0), (-9.1100E0,-1.1900E0), (-8.9800E0,-1.2300E0), (-8.8400E0,-1.2300E0), (-8.7600E0,-1.2300E0), (-8.5400E0,-1.1700E0), (-8.3800E0,-1.1500E0), (NaN,NaN), (-8.7000E0,-1.0700E0), (-8.7200E0,-1.1300E0), (-8.7600E0,-1.1900E0), (-8.8000E0,-1.3100E0), (-8.8200E0,-1.4300E0), (NaN,NaN), true]
tracé6: PolyLine[(-8.0200E0,2.6300E0), (-8.1100E0,2.5600E0), (-8.1600E0,2.4500E0), (-8.1600E0,2.2700E0), (-8.1500E0,2.1000E0), (-8.0500E0,2.0300E0), (-7.9400E0,2.0100E0), (-7.8500E0,2.0400E0), (-7.8700E0,2.1800E0), (-7.9700E0,2.2600E0), (-8.1100E0,2.2600E0), (-8.2000E0,2.2300E0), (NaN,NaN), true]
E = (-5.24, -3.5500000000006864)
F = Point(Circle[E, 4])
f = Segment(E, F)
g = OrthogonalLine(E, f)
c = Circle(F, 6)
G = Intersect(c, g, 2)
h = Segment(G, E)
i = Segment(G, F)
α = Angle(F, E, G)