Animation: Circumcircle of a triangle (App)

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

The vertices of the triangle can be adjusted.

Screenshot of an animation. The animation shows how the circumference of a triangle is formed geometrically.

The app has been specifically designed for mobile phones and tablets. The layout of the app adopts to the format of the device. The app can also be used on a regular PC or Mac.

TitleCircumcircle of a triangle
Target audienceSelf-learners
PlatformsInternet browser
FeaturesFull screen mode
lossless magnification
Large screens supported
LizenzFreeware (for non-commercial use)


  • Authoring tool: Adobe Animate
  • JavaScript library: CreateJS

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