Triangle Calculator
Calculate angles, sides, area, and perimeter of any triangle. Solve for missing values using SSS, SAS, SSA, ASA, or AAS methods.
Triangle Solver
Right Triangle
Triangle Results
| Side a: | - |
|---|---|
| Side b: | - |
| Side c: | - |
| Angle A: | - |
| Angle B: | - |
| Angle C: | - |
| Perimeter: | - |
| Area: | - |
Right Triangle Results
| Leg a: | - |
|---|---|
| Leg b: | - |
| Hypotenuse: | - |
| Angle A: | - |
| Angle B: | - |
| Perimeter: | - |
| Area: | - |
About Triangle Calculator
The Triangle Calculator computes all angles, sides, area, and perimeter of any triangle when given sufficient information about its sides and angles. It can solve triangles using five different methods: SSS (side-side-side), SAS (side-angle-side), SSA (side-side-angle), ASA (angle-side-angle), and AAS (angle-angle-side).
How to Use the Triangle Calculator
To calculate the properties of a triangle:
- Select the method that matches your known values (SSS, SAS, SSA, ASA, or AAS)
- Enter the known values in the appropriate input fields
- Click "Calculate" to compute all unknown values
- View the results including side lengths, angles, perimeter, and area
Triangle Solving Methods
- SSS (Side-Side-Side): When you know the lengths of all three sides of the triangle.
- SAS (Side-Angle-Side): When you know two sides and the included angle.
- SSA (Side-Side-Angle): When you know two sides and a non-included angle.
- ASA (Angle-Side-Angle): When you know two angles and the included side.
- AAS (Angle-Angle-Side): When you know two angles and a non-included side.
Right Triangle Calculator
The Right Triangle Calculator specifically solves right triangles (triangles with one 90° angle). It can calculate the remaining sides and angles when given:
- Two legs
- One leg and the hypotenuse
- One leg and an adjacent angle
- The hypotenuse and an angle