Isosceles Triangle Angles Calculator
Result
Vertex40
Base 170
Base 270
↗ Math
Isosceles Triangle Angles Calculator — free online calculator.
Formula
Rule: Base angle = (180° − Vertex angle)/2; both base angles are equal.
- Isosceles Triangle Angles Calculator calculates its result from Vertex angle (deg). It uses the formula Calculated with the verified ST Calculator runtime.. Change any input to recalculate the result instantly.
- The main inputs are Vertex angle. 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: Isosceles Triangle Angles
Inputs
- Vertex angle: 40 deg
Using Vertex angle (deg) = 40, the calculated result is Vertex: 40 | Base 1: 70 | Base 2: 70.
Sample result: Calculating…
Frequently asked questions
What does the Isosceles Triangle Angles calculate?
Isosceles Triangle Angles Calculator — free online calculator.
Which values should I enter?
Enter Vertex angle using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Rule: Base angle = (180° − Vertex angle)/2; both base angles are equal..
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.