bonjour
AB² = AF² + FB²
AB² = 300² + 400 ² = 250 000
AB = √ 250 000 = 500 m je suppose
BC = 500 * 0.24 = 120 m
ED = 500
EC = 1 300
CD² = 1300 ² - 500²
CD² = 1 440 000
CD = 1 200 m
distance = 500 + 120+ 1 200 + 500 = 2 320 m
4 800 m = 60 min
2 320 m = 29
il mettra 29 minutes
