Triangle Sketch
Draw and explore triangles
About
This geometry tool allows users to draw and manipulate triangles on a graph. It provides measurements, allows editing of sides and angles, and displays various triangle facts and properties. It's designed to help students visualize geometric concepts.
What's New in Triangle Sketch
1.1
September 7, 2026
Triangle Sketch 1.1 adds new advanced geometry tools: - Show the orthocenter of a triangle - Display the Euler line through key triangle centers - Move the height line more easily after drawing a triangle - Improved geometry overlays for exploring triangle relationships
MoreFAQ
What is Triangle Sketch?
Triangle Sketch is a hands-on geometry tool for drawing and exploring triangles. It helps students visualize how triangle measurements connect by allowing them to draw, edit, and analyze triangles directly on a graph.
What kind of triangles can I work with in Triangle Sketch?
You can work with any type of triangle, including right triangles. The app allows you to edit side lengths, angles, and vertex coordinates to explore different triangle configurations.
What measurements and properties does Triangle Sketch show?
Triangle Sketch displays various properties such as area, perimeter, triangle type, height, centroid, incircle, and circumcircle. It also includes right-triangle trig tools.
How can I customize Triangle Sketch?
You can customize the app by changing units, decimal precision, colors, grid snapping, and other display options. This allows for a personalized learning experience.
Is Triangle Sketch suitable for beginners?
Yes, Triangle Sketch is designed for students and anyone learning geometry. It provides one-time hints to help students discover important tools and understand concepts visually.
What devices is Triangle Sketch available on?
Triangle Sketch is available on iPhone and iPad devices, offering a flexible platform for learning geometry.
How often is Triangle Sketch updated?
The latest version of Triangle Sketch is 1.1, which was last updated on September 7, 2026. Updates typically focus on improving functionality and adding educational value.
Does Triangle Sketch have ads?
No, Triangle Sketch does not contain advertisements. It is a paid application that provides an uninterrupted learning experience.