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4. Inverse Cosine Calculator

{
  "topic": "inverse-cos",
  "function": "cos<sup>−1</sup>",
  "initial_value": "0.5",
  "function_desc": "Inverse Cosine",
  "title": "Inverse Cosine Calculator",
  "x_symbol": "x",
  "x_symbol_other": "AB / AC",
  "x_desc": "adjacent_side/hypotenuse",
  "tag": "Trigonometry",
  "formula": "θ = acos(Length of Adjacent side / Length of Hypotenuse)",
  "formula_in_js": "Math.acos(x)",
  "formula_sides": "θ = acos(AB / AC)",
  "description": "Inverse Cosine cos<sup>−1</sup>() Calculator is used to find the angle for a given ratio of the length of the adjacent side to the length of the hypotenuse, in a right angled triangle.",
  "template": "calculators/trigonometry_calculator"
}