Triangle Calculator
Solve any triangle by entering known values (SSS, SAS, ASA, AAS, or right triangle). Get all sides, angles, area, and perimeter instantly.
This tool helps students, engineers, architects, and professionals solve triangle problems quickly and accurately. Whether you're calculating angles for structural design, determining areas for land surveying, or studying geometry, our triangle calculator provides instant results with visual representation.
Tool Input
Side-Side-Side (SSS)
Enter all three sides of the triangle.
Side-Angle-Side (SAS)
Enter two sides and the included angle.
Angle-Side-Angle (ASA)
Enter two angles and the included side.
Angle-Angle-Side (AAS)
Enter two angles and a non-included side.
Right Triangle Solver
Enter any two values of a right triangle.
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Results
Enter known values and click "Calculate" to see results.
How to Use the Triangle Calculator
- Select the appropriate tab based on what you know about your triangle (SSS, SAS, ASA, AAS, or Right Triangle).
- Enter the known values in the input fields.
- Click "Calculate" to solve for the unknown sides and angles.
- View the results including all sides, angles, area, and perimeter.
- The triangle diagram will update to show your triangle's shape.
Features & Benefits
- Multiple Solving Methods: Supports SSS, SAS, ASA, AAS, and right triangle calculations.
- Instant Results: Calculates all missing sides and angles in real-time.
- Visual Representation: See a diagram of your triangle with labeled sides and angles.
- Comprehensive Output: Get area, perimeter, and all angle measures.
- Client-Side Processing: All calculations happen in your browser for privacy and speed.
Frequently Asked Questions
What is the difference between ASA and AAS?+
How accurate are the calculations?+
Can I solve a triangle with three angles (AAA)?+