Triangle Angle Formula:
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Definition: This calculator determines the missing angle in a triangle when two angles are known, or verifies angle measurements.
Purpose: It helps students, teachers, and professionals quickly solve triangle angle problems in geometry and trigonometry.
The calculator uses the fundamental triangle angle formula:
Where:
Explanation: The sum of all interior angles in any triangle always equals 180 degrees. Enter any two angles to find the third.
Details: Understanding triangle angles is essential for solving geometric problems, construction planning, and various engineering applications.
Tips: Enter any two known angles (in degrees) and the calculator will compute the third. All angles must be between 0 and 180 degrees.
Q1: Why does the sum always equal 180°?
A: This is a fundamental property of Euclidean geometry - the angles in any triangle must sum to 180 degrees.
Q2: What if my angles don't add up to 180°?
A: Either there's a measurement error or you're working with non-Euclidean geometry (like spherical triangles).
Q3: Can I use this for right triangles?
A: Yes! Just remember one angle is always 90° in a right triangle.
Q4: What about equilateral triangles?
A: In equilateral triangles, all three angles equal 60° (60 + 60 + 60 = 180).
Q5: How precise are the calculations?
A: Results are shown to one decimal place, but the calculation uses more precise internal values.