Circles, Tangents, and N-gon Diagonals

A sequence of apps exploring some interesting characteristics of odd-sided regular polygons.

Tags: Circles, tangents, diagonals, n-gons, heptagon, nonagon, hendecagon, tridecagon

Proportional Puzzlers

A collection of puzzlers that involve points that are located proportionally by functions or constants on curves.

Tags: Proportional point, function, circle, radius, flower, puzzler, trace, ellipse, polar function

Common Core Nuggets: Conics

This collection contains apps that will help teachers implement Common Core Geometry Standard G-GPE 1, 3 for High School Mathematics.

Tags: geometry, common core, conic sections, circle, ellipse, hyperbola

Generalizations of a Theorem from Archimedes Liber Assumptorum

The first diagram is from Archimedes' Liber Assumptorum (book of Lemmas). The later diagrams are generalizations to conics.

Tags: Archimedes, circle, ellipse, parabola, hyperbola

Theorem apps

Theorems involving circles

Tags: Circles