# Calculation of the circumcircle of a triangle

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

The vertices of the triangle can be adjusted.

Start App

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.

Title: | Calculation of the circumcircle of a triangle |

Target group: | Students |

Level: | easy |

Platforms (primary): | Smartphones, tablets and PCs |

Online/Offline: | Internet connection is required. |

## Further animations for smartphones/tablets

Calculation of the inner circle of a triangle

Calculation of the center of gravity on a triangle

Geometric relationships on a square

Basic principles of differential and integral calculus

## Further animations for PCs

Geometric relations on the triangle

Basic principles of differential and integral calculus

Pythagorean theorem

Sine and cosine theorem

Fundamentals of the integral calculus

## Sources

- Authoring tool: Adobe Animate
- JavaScript library: CreateJS

## Feedback

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