Equilateral Triangle
Angle A (degrees): 60 degrees; Angle B (degrees): 60 degrees
Angle C (degrees): 60 degrees
Triangle Angle Calculator
Math0.0(0)
Calculates the missing angle of a triangle given the other two angles.
More tools:Math & Statistics Calculators
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Angle A (degrees) and Angle B (degrees) in the units shown.
Step 2
Read Angle C (degrees) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Right Isosceles Triangle
Angle A (degrees): 45 degrees; Angle B (degrees): 45 degrees
Angle C (degrees): 90 degrees
Right Triangle (Other angles)
Angle A (degrees): 30 degrees; Angle B (degrees): 60 degrees
Angle C (degrees): 90 degrees
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