Lesson 86. Properties of Parallel Lines

T6-criterion for parallel lines

[bgcolor=orange] If two lines are intersected by a third line, and alternate interior (or exterior) angles are equal, then the original two lines are parallel. [/bgcolor]

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Tangent in Cartesian and Polar Coordinates
Polar Coordinates Book
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Special Right Triangles 30°-60°-90° and 45°-45°-90°
Graphing a Circle in Polar Coordinates

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Presentation - GeoGebra and Research
Polar Function Grapher
Alex
Hình 112 trang 102

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Derivata
Parabola
Intersezioni
Calcolo integrale
Circonferenza inscritta