Use our free online Triangle Degree Calculator to effortlessly find unknown angles in any triangle. Whether you have two angles or need to verify the sum of all three, our tool provides instant, accurate results for geometry problems, homework, or quick checks. Perfect for students and professionals.
Formula:
The sum of all interior angles in any triangle is always 180°. If Angle A, Angle B, and Angle C are the interior angles of a triangle, the formula is:
A + B + C = 180°
If you know two angles (e.g., A and B), you can find the third (C) using:
C = 180° - (A + B)
Where:
- A = First interior angle in degrees
- B = Second interior angle in degrees
- C = Third interior angle in degrees (the missing angle)