

Online Geometry Theorems and Problems. College, High School


Geometry  Recent
Additions 1)




Geometry Problem 1349. Three Squares, 90 Degrees, Perpendicular Lines, Diagonal. Math Infographic. 

Geometry Problem 1348. Three Concentric Circles, Equilateral Triangle, Perpendicular Bisector, Congruence. 

Geometry Problem 1347. Triangle, Angle Bisector, Congruence, Circumcircle, Tangent, Equilateral Triangle. 

Geometry Problem 1346. Equilateral Triangle, Point on the Incircle, Altitude, Perpendicular, Sum of Squares, Distance. 

Geometry Problem 1345: Three Equilateral Triangles, Center, Area, Common Vertex. 

Geometry Problem 1344, Bottema's Theorem: Triangle and Squares with Interactive
Geometry Software. 

Problem 1343.
Triangle, Excircles, Circle, Tangent, Tangency Points, Chord, Perpendicular, 90 Degrees, Collinearity. Machu Picchu in the background.


Problem 1342.
Circle, Secant, Chord, Midpoint, Concyclic Points, Cyclic Quadrilateral.


Problem 1341.
Isosceles Triangle, 802080 Degrees, Circumcenter, Angle Bisector.


Problem 1340.
Triangle, Incenter, Concentric Circles, Isosceles Triangles, Congruence.


Problem 1339.
Circle, Diameter, Tangent, Secant, Parallelogram.

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