1. What is the Triangle Angle Sum?

Definition: The sum of interior angles in any triangle always equals 180 degrees.

Purpose: This calculator helps find missing angles in triangles when two angles are known.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( A \) — First angle of the triangle
• \( B \) — Second angle of the triangle
• \( C \) — Third angle of the triangle

Explanation: Enter any two angles to calculate the third. All angles must be between 0° and 180°.

3. Importance of Triangle Angle Calculation

Details: Understanding triangle angles is fundamental in geometry, trigonometry, and various practical applications like construction and navigation.

4. Using the Calculator

Tips: Enter any two known angles (leave one field blank) to calculate the missing angle. The sum will always be displayed.

5. Frequently Asked Questions (FAQ)

Q1: Does this work for all types of triangles?
A: Yes, the angle sum applies to all triangles - equilateral, isosceles, scalene, acute, right, and obtuse.

Q2: What if I enter all three angles?
A: The calculator will verify if they sum to 180° but won't calculate anything new.

Q3: Can angles be negative or exceed 180°?
A: No, each angle must be between 0° and 180° for a valid triangle.

Q4: How precise are the calculations?
A: Results are shown to one decimal place for accuracy.

Q5: What about exterior angles?
A: This calculator only deals with interior angles. The sum of exterior angles is always 360°.