# geometry triangle circle orthocenter perpendicular midpoint animation geogebra right congruent circles tangent radius centroid incenter parallel teacher school cyclic quadrilateral arc measurement congruence angles squares angle math photoart darkart symmetry computervision square equilateral euclid bisector rhombus teachers isosceles fractalfriday fractal fractals fractalart computerart mathart fractaldesign fractalgeometry 3dfractal fra triangles area houdini bisectors maths mobile apps ipad tablet collinearity concurrency
画質 高画質

What patterns can you see in this My son, Dexter, 5¼, provided the idea for this. :)

24 26
2016-08-17

Very useful: the "Delete Geometry But Keep the Points" option of the Add SOP in

1 3
2016-08-05

Celebrate 200 issues of Molecule of the Month with August's feature on quasisymmetry https://t.co/rOMStMxllG

12 13
2016-08-04