Right Triangle Solver

About Right Triangle Solver

Use sine, cosine, and tangent to solve a right triangle after you choose the side you know.

How to Use

Choose the side you know, enter the acute angle, and review the solved opposite, adjacent, hypotenuse, area, perimeter, sine, cosine, tangent, and status outputs. The side input changes with your selection so hidden values do not affect the result.

  1. Open the calculator : Use Right Triangle Solver from the Math category.
  2. Check the inputs : Review the required values and any optional settings.
  3. Read the formula : Use the formula and notes below to understand how the result is produced.

Common Questions

What formula does the Right Triangle Solver Calculator use?

Use sine, cosine, and tangent with one known side and one acute angle.

Inputs

  • Angle
  • Known side
  • Opposite
  • Adjacent
  • Hypotenuse

Outputs

  • Opposite
  • Adjacent
  • Hypotenuse
  • Area
  • Perimeter
  • Sine
  • Cosine
  • Tangent
  • Status

Formula

Use sine, cosine, and tangent with one known side and one acute angle.