Formula Used:
From: | To: |
The formula calculates the length of side C of a triangle when given sides A and B, and angles A and C. It uses trigonometric relationships to determine the unknown side length.
The calculator uses the formula:
Where:
Explanation: The formula uses cosine functions to relate the sides and angles of the triangle, allowing calculation of the unknown side C.
Details: Calculating unknown side lengths is fundamental in trigonometry and geometry, with applications in navigation, engineering, physics, and computer graphics.
Tips: Enter all values in appropriate units (meters for sides, radians for angles). Ensure all values are positive and angles are in valid ranges.
Q1: Why use radians instead of degrees for angles?
A: Trigonometric functions in mathematical calculations typically use radians. Convert degrees to radians by multiplying by π/180.
Q2: What if the result is negative?
A: A negative result may indicate an invalid triangle configuration or measurement errors in the input values.
Q3: Can this formula be used for any triangle?
A: This specific formula applies to triangles where two sides and two angles are known, with the angles being A and C.
Q4: What are the limitations of this formula?
A: The formula assumes valid triangle measurements and may not work for degenerate triangles or when angles approach 90 degrees.
Q5: How accurate is the calculation?
A: Accuracy depends on the precision of input values and the mathematical implementation of cosine functions.