Formula Used:
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This calculator determines the length of side B in a triangle when given two sides (A and C) and two angles (A and B) using trigonometric relationships.
The calculator uses the formula:
Where:
Explanation: This formula uses cosine functions to calculate the unknown side length based on the given sides and angles, leveraging trigonometric relationships in triangles.
Details: Calculating unknown side lengths in triangles is fundamental in geometry, engineering, architecture, and various scientific applications where triangular relationships are involved.
Tips: Enter all known values in appropriate units (meters for sides, radians for angles). Ensure all values are positive and angles are in proper radian measure.
Q1: Can I use degrees instead of radians?
A: This calculator requires angles in radians. Convert degrees to radians by multiplying by π/180.
Q2: What types of triangles does this work for?
A: This formula works for any triangle where you know two sides and two angles, regardless of whether it's acute, obtuse, or right-angled.
Q3: What if I get a negative result?
A: A negative result indicates that the given measurements cannot form a valid triangle. Check your input values.
Q4: How accurate is this calculation?
A: The calculation is mathematically exact based on trigonometric principles, assuming precise input values.
Q5: Can this be used for 3D triangles?
A: This formula is specifically for 2D planar triangles. For 3D triangles, additional considerations and formulas are needed.