   # Go Geometry: What's New, Recent Additions, College, High School, Kids

## Recent Additions (Page 1a) Geometry Problem 1394.
Three Circles and Three Pair of Common Internal Tangents, Concurrency.

Geometry Problem 1393.
Monge's Circle Theorem, Three Circles and Three Pair of Common Tangents, Collinearity.

Geometry Problem 1392.
Two Cyclic Quadrilateral, Cyclic Octagon, Circle.

Geometry Problem 1391.
Two Triangles, Ratio of Areas, Circumcircle.

Geometry Problem 1390.
Triangle, any point, perpendicular, sum of the squares.

Art of Geometry Problem 603.
Generative Art Composition.

Geometry Problem 1389.
Triangle, 40-120-20 degree, Angle, Congruence.

Geometry Problem 1388.
Triangle 40-60-80 degree, Incenter, Congruence.

Etching and Typography of Geometry Problem 652.
Archimedes Book of Lemmas: Proposition 12

Geometry Problem 1387.
Quadrilateral, Double Angle, Congruence, Isosceles Triangle.

Geometry Problem 1386.
Thabit ibn Qurra (826 -901) Theorem and more conclusions, generalized Pythagorean Theorem to any triangle.

Geometry Problem 1385.
Triangle, Orthocenter, Circle, Circumcircle, Angle Bisector, Midpoint, Collinear Points.

Poster of problem 80. Area of a triangle, side, incircle, inradius.

Geometry Problem 1384.
Triangle, Orthocenter, Circle, Circumcircle, Angle Bisector, 90 Degree.

Art of Problem 1384.
Triangle, Orthocenter, Circle, Angle Bisector, Perpendicular, iPad Apps, Mobile.

Geometry Problem 1383.
Triangle, Median, Circle, Chord, Secant, Sum, Product.

Geometry Problem 1382.
Circle, Diameter, Radius, Perpendicular, Congruence.

Geometry Problem 1381.
Parallelogram, Exterior Point, Triangle, Area.

Geometry Problem 1379.
Common External Tangents. Circles, Secant, Congruent Chords.

Geometry Problem 1380.
Common Internal Tangents. Circles, Secant, Congruent Chords.

Geometry Problem 1378.
Parallelogram, Diagonal perpendicular to a side, Distances from a Point to Vertices, Measurement.

Geometry Problem 1377.
Isosceles Triangle, Interior Cevian, Equal Sum of Exradii, Excircle.

Geometry Problem 1376.
Isosceles Triangle, Interior Cevian, Excircles, Tangency Points, Parallel Lines.

Geometry Problem 1375.
Isosceles Triangle, Interior Cevian, Exradius, Excircle, Altitude to the Base.

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Last updated: Jun 2, 2018  