College Geometry Online, eLearning

Online Math: Geometry: Parallel Lines, Theorems and Problems


Parallel Lines, Page 1

Parallel Lines Index

Parallelograms Index

Parallelogram. Theorems and Problems.
is a quadrilateral whose opposite sides are parallel.

Rectangle Index

Rectangle. Theorems and Problems Index.

Rhombus, Rhombuses, Rhombi


Wordflex Point

Meanings and syntactic of 'PARALLEL'.
Created using Wordflex Touch Dictionary for iPad in association with Oxford University Press.

Geometry in the Real World: Griffith Observatory and Parallel Lines

Geometry in the Real World: Griffith Observatory, L.A. and Parallel Lines.

Isolines: Celtic Maze

Geometric Art: Isolines, Celtic Maze, Spiral Pattern, Geometry for Kids, Software, iPad, Parallel Lines

Geometry problem 1329

Geometry Problem 1329.
Two Squares Side by Side, Parallel, Perpendicular, 90 Degrees, Congruence.

Geometry problem 1307

Geometry Problem 1307.
Triangle, Incenter, Parallel line, Sides, Measurement.

Geometry problem 1290

Geometry Problem 1290.
Triangle, Internal Angle Bisector, Median, Parallel, Measurement, Metric Relations.

Geometry problem 1268

Geometry Problem 1268.
Triangle, Exterior Angle Bisector, Circumcircle, Circle, Chord, Parallel, Concyclic Points, Cyclic Quadrilateral.

Geometry problem 1259

Geometry Problem 1259.
Triangle, Circumcircle, Circle, Diameter, Parallel Lines.

Geometry problem 1249

Geometry Problem 1249.
Cyclic Quadrilateral, Circle, Triangle, Circumcircle, Angle Bisector, Parallel Lines, Area.

Geometry problem 1248

Geometry Problem 1248.
Triangle, Circumcircle, Circle, Diameter, Orthocenter, Altitude, Parallel Lines.

Geometry problem 1237

Geometry Problem 1237
IMO 2016, Problem 1, Triangle, Congruence, Parallel Lines, Midpoint, Concurrency.

Geometry problem 1224

Geometry Problem 1224
Triangle, Parallel to the Sides.

Geometry problem 1223

Geometry Problem 1223
Circle, Parallel Chords.

Geometry problem 1221

Geometry Problem 1221
Intersecting Circles, Chord, Tangent, Parallel Chords, Collinear Points.

Geometry problem 1192

Geometry Problem 1192
Trapezoid, Triangle, Diagonal, Midpoint, Area, Parallel.

Geometry problem 1188

Geometry Problem 1188
Triangle, Parallelogram, Parallel Lines, Trapezoid, Area.

Geometry problem 1183

Geometry Problem 1183
Parallelogram, Diagonals, Circle, Tangent Line.

Geometry problem 1162

Geometry Problem 1162.
Triangle, Congruence, Double Angle, Parallel Lines, Circle, Circumcenter.

Geometry problem 1139

Geometry Problem 1139.
Triangle, Circumcircle, Angle Bisector, Parallel Lines, 90 Degrees, Concurrent Lines.

Isolines: Celtic Maze

Geometric Art: Isolines, Triquetra, Celtic Knotwork, Trefoil Knot, Parallel Lines, Geometry for Kids, Software, iPad, Parallel Lines

Geometry problem 1135

Geometry Problem 1135.
Intersecting Circles, Secant, Parallel Line, 90 Degrees, Similar Triangles.

Isolines: the Valknut

Geometric Art: Isolines, the Valknut, three Interlocked Triangles, Geometry for Kids, Software, iPad, Parallel Lines

Geometry problem 1132

Geometry Problem 1132.
Triangle, Excircle, Tangency Point, Parallel, Midpoint.

Isolines of Borromean Rings

Geometric Art: Isolines of Borromean Rings, Three Circles, Parallel Lines, Geometry for Kids, Software, iPad

Geometry problem 1129

Geometry Problem 1129.
Isosceles Triangle, Circumcenter, Incenter, Parallel Lines, Perpendicular Lines.

Isolines: Adinkra Symbol Ananse

Geometric Art: Isolines, Adinkra Symbol, Ananse Ntontan, Wisdom, Software, iPad, Parallel Lines

Geometry problem 1128

Geometry Problem 1128.
Right Triangles, Medians, Parallel, Angles, Congruence, Half the measure.

Geometry Problem 1117

Geometry Problem 1117.
Right Triangle, Angle Trisection, 90 Degrees, Parallel Lines.

Geometry Problem 1101

Geometry Problem 1101.
Triangle, Parallel Lines, Circle, Incircle, Inradius, Radius, Angle.

Geometry Problem 1087

Geometry Problem 1087.
Tangent Circles, Parallel, 15 Degrees, Angle.

Geometry Problem 1084

Geometry Problem 1084.
Circle, Chord, Radius, Diameter, Parallel lines, 45 Degrees, Metric Relations.

Geometry Problem 1071

Geometry Problem 1071.
Arbelos, Semicircles, Diameter, Circle, Perpendicular, Common Tangent, Parallel, Collinear Points, 90 Degrees, Midpoint.

Geometry Problem 1047

Geometry Problem 1047.
Parallelogram, Parallel Lines, Concurrent Lines, Diagonals.

Geometry Problem 1039

Geometry Problem 1039.
Isosceles Triangle, Circle, Tangent Line, Parallel Line.

Geometry Problem 1031

Geometry Problem 1031.
Trapezoid, Intersecting Circles, Common Chord, Tangent Line, Midpoint, Parallel Lines.

Geometry Problem 1030

Geometry Problem 1030.
Quadrilateral, Triangle, Area, Midpoint, Parallel lines.

Geometry Problem 1011

Geometry Problem 1011.
Triangle, Angle Bisector, Vertex, Circle, Center, Radius, Parallel Lines.

Geometry Problem 1002

Geometry Problem 1002.
Triangle, Circumcircle, Cevian, Parallel Lines, Cyclic Quadrilateral, Concyclic Points.

Geometry Problem 997

Geometry Problem 997.
Equilateral Triangle, Vertices, Three Parallel Lines, Distance, Metric Relations.

Geometry Problem 995

Geometry Problem 995.
Quadrilateral, Perpendicular Diagonals, Perpendicular Bisector, Parallel.

Geometry Problem 994

Geometry Problem 994.
Trapezoid, Midpoints of the bases, Concurrent Lines.

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Last updated: Apr 10, 2017