Free (see ⭐ below)

The only triangle solver that draws the values you enter AND enters the values you draw.

Perfect For:
• Geometry teachers and their students
• Machinists and engineers ⚙️
• Physics and astronomy
• Surveyors
• Construction and carpentry projects
• Navigation and orienteering ⛵
• Anyone solving triangles

Both solve for AND ENTER: ✅
• Sides
• Angles
• Vertices
• All 3 Heights
• Perimeter
• Area
• Multiple Centers

Key Features:
• Solve ambiguous triangles.
• Categorize scalene, isosceles, equilateral triangles.
• Categorize acute, right, and obtuse triangles.
• Inverse math solutions.
• Partial math solutions.
• Translate, rotate, reflect and dilate transformations.

Drawing Features: ✏️
• User drawable sides, angles and vertices.
• Automatic viewport center, zoom and orientation.
• Precision aware drawing granularity.
• Axis lock on xy and rθ vertices.
• Zoom and pan graphics.

Numeric Features: 1️⃣2️⃣3️⃣
• 15 angle units. (deg°, rad, d°m's", % grade, tau, ...)
• Metric, SAE, and universal length units.
• Automatic unit conversion.
• Configurable precision.
• Optional zero and negative geometry.
• Numerically stable trigonometry.
• Integrated xy and rθ coordinate systems.

Interface Features:
• Long press any angle icon for right triangle.
• Long press for math expressions (e.g. 7 + 9/32).
• Individual value memory.
• Numeric and graphic relationship visualization.
• Solve without pressing a calculate key.
• Automatic side and angle entry detection.
• Dynamic adjustment of field sizes.
• Live settings.
• Visually descriptive and functional icons.
• Dark background to reduce eye strain.
• Portrait and landscape displays.
• Tabbed display lecture option.
• Save and restore triangles.

Additional Features:
• No ads.
• No In-app purchases.
• No subscription costs.
• No app permissions.
• No internet required after download.
• Available in over 35 languages.
• Free download days.
• Free email support.

You have found the best triangle solver.

(⭐) Contact the developer by email and request a promotion code for your 100% free and fully functional download. No ads, no upsells, no strings, ... just free. Your email will not be sold or shared.

✉️: bessermt@gmail.com

All store purchases are considered donations and help keep the app ad-free.

Reviews with constructive feedback help improve the app. Positive rankings help promote the app in underserved communities.

In memory of my geometry teacher Mr. Robert Wegner.