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Geometry resources

Straight Line, Circle, Triangle, Rectangle, Square, Trapezium, Sphere, Polygon: 
Competitive Programming by F.H & S.H- 7.2 Geometry Basics 

Dot Product & Cross Product:

Line-Point Distance:

Line-Line Intersection:
Competitive Programming by F.H & S.H-7.4 Intersection Problems

Segment Intersection(Line):

Polygon Area & Perimeter:
Competitive Programming by F.H & S.H- Paze 126

Circle Intersection:

Reflection & Rotation of Line:

CCW (Counter Clockwise) Test:
Competitive Programming by F.H & S.H- Paze 127

Convex Hull:
Competitive Programming by F.H & S.H-7.3 Graham’s Scan

Line Sweep Algorithms:

Point In Triangle:

Point In Polygon:

Closest Pair of Point:

Great-Circle Distance:
Competitive Programming by F.H & S.H- Paze 125

Circle Union:

Bisection Method:
Competitive Programming by F.H & S.H - Paze 131 

Computational Geometry (Advanced):

Using Geometry in TopCoder Problems:



[Courtesy: Programming Resources]

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