Inner circle of a triangle (App)

The following interactive smartphone app shows how the inner circle of a triangle is calculated using geometry.

The vertices of the triangle can be moved interactively with the mouse (or the finger on a touchscreen).

TitleInner circle of a triangle
Target audienceSelf-learners
PlatformsInternet browser
FeaturesFull screen mode
lossless magnification
Large screens supported


  • Authoring tool: Adobe Animate
  • JavaScript library: CreateJS

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