# Triangle Sketch — Draw and explore triangles

> Interactive geometry tool for drawing, measuring, and exploring triangles. (iPhone/iPad app by Eduardo Longoria Alaniz.)

- Source: https://appshunter.io/ios/app/triangle-sketch/id6795052381 (this page in markdown: same URL + `.md`)
- Developer: [Eduardo Longoria Alaniz](https://appshunter.io/developer/6795052383)
- Category: Education
- Price: $0.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.6 · 5 MB
- Languages: American English
- Released: 2026-08-06
- Data updated: 2026-09-21
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/triangle-sketch/id6795052381/reviews.md

## What is Triangle Sketch?

Triangle Sketch is a hands-on geometry tool for drawing and exploring triangles.

Draw a triangle with your finger, check its measurements, edit side lengths and angles, move vertices, enter coordinates, and view useful triangle facts. Triangle Sketch helps students see how triangle measurements connect instead of only reading formulas.

Features:
• Draw triangles directly on a graph
• Edit side lengths, angles, and vertex coordinates
• Work with any triangles and right triangles
• View area, perimeter, triangle type, height, centroid, incircle, and circumcircle
• Use right-triangle trig tools
• Change units, decimals, colors, grid snapping, and display options
• One-time hints help students discover important tools

Triangle Sketch is designed for students, teachers, and anyone learning geometry.

## Key features

- Draw triangles on a graph
- Edit side lengths and angles
- View triangle measurements
- Explore triangle properties
- Use right-triangle trig tools
- Customize display options


## Frequently asked questions about Triangle Sketch

### 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.

## Version history (last 2 releases)

### 1.1 — 2026-09-07

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

### 1.0 — 2026-08-06

No release notes.

## Related topics

[isosceles triangle](https://appshunter.io/ios/topics/isosceles-triangle)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-21.*