Triangle Calculator
Result
Triangle Calculator Popular Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = √(s(s−a)(s−b)(s−c)) where s = (a+b+c)/2 (Heron's formula). Angle A = arccos((b²+c²−a²) — free online calculator.
Formula
- Triangle Calculator calculates its result from Arccos, B, C, A, Bc, Law Of Cosines. It uses the formula Area = √(s(s−a)(s−b)(s−c)) where s = (a+b+c)/2 (Heron's formula). Angle A = arccos((b²+c²−a²)/(2bc)) — law of cosines.. Change any input to recalculate the result instantly.
- The main inputs are Arccos, B, C, A, Bc, Law Of Cosines. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Triangle
- Arccos: 2
- B: 3
- C: 4
- A: 5
- Bc: 6
- Law Of Cosines: 7
Using Arccos = 2, B = 3, C = 4, A = 5, Bc = 6, Law Of Cosines = 7, the calculated result is -7.
Sample result: Calculating…
Frequently asked questions
What does the Triangle calculate?
Triangle Calculator Popular Triangle Calculator is a mathematics calculator that helps you calculate triangle side lengths, angles, or area. The formula used is: Area = √(s(s−a)(s−b)(s−c)) where s = (a+b+c)/2 (Heron's formula). Angle A = arccos((b²+c²−a²) — free online calculator.
Which values should I enter?
Enter Arccos, B, C, A, Bc, Law Of Cosines using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Area = √(s(s−a)(s−b)(s−c)) where s = (a+b+c)/2 (Heron's formula). Angle A = arccos((b²+c²−a²)/(2bc)) — law of cosines..
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.