📐 Complete Mathematical Calculation:
Line 1 (0°): (0,0) → (50, 0)
Calculation: endX = 0 + 50 × cos(0°) = 0 + 50 × 1 = 50
Calculation: endY = 0 + 50 × sin(0°) = 0 + 50 × 0 = 0
Line 2 (-60°): (50,0) → (75, -43.301)
Calculation: endX = 50 + 50 × cos(-60°) = 50 + 50 × 0.5 = 75
Calculation: endY = 0 + 50 × sin(-60°) = 0 + 50 × -0.86603 = -43.301
Line 3 (0°): (75,-43.301) → (125, -43.301)
Calculation: endX = 75 + 50 × cos(0°) = 75 + 50 × 1 = 125
Calculation: endY = -43.301 + 50 × sin(0°) = -43.301 + 0 = -43.301
Line 4 (60°): (125,-43.301) → (150, 0)
Calculation: endX = 125 + 50 × cos(60°) = 125 + 50 × 0.5 = 150
Calculation: endY = -43.301 + 50 × sin(60°) = -43.301 + 50 × 0.86603 = 0
🎯 Final End Point: (150, 0)
✅ CORRECT! Line 1 is now fixed: (0,0) → (50,0) at 0°
All lines connect end-to-end correctly.
Next: What are the remaining angles to close the shape?