Triangle Calculator
Calculate all sides, angles, area, and perimeter of a triangle from any 3 known values.
Area
17.32
Perimeter
20.00
Type
Scalene / Acute
Sides
| Side a | 5.0000 |
| Side b | 7.0000 |
| Side c | 8.0000 |
Angles
| Angle A | 38.21° |
| Angle B | 60.00° |
| Angle C | 81.79° |
| Sum of Angles | 180.00° |
Properties
| By Sides | Scalene |
| By Angles | Acute |
| Area | 17.3205 |
| Perimeter | 20.0000 |
Use the Triangle Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
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