Is it a Right Triangle? Calculator

Your details

Select the set of measurements you have. The calculator will run the appropriate right-triangle test.
Length of the first side. Any unit is fine as long as all three use the same unit.
units
Length of the second side.
units
Length of the third side. The calculator automatically identifies the longest side as the candidate hypotenuse.
units
Is it a right triangle?Right triangle confirmed
YES - it is a right triangle

YES or NO, based on the values you entered.

Area6units²
Perimeter12units
Hypotenuse (longest side)5units
Pythagorean deficit (a² + b² - c²)0

Yes, this is a right triangle.

  • The three sides satisfy the Pythagorean theorem: a squared plus b squared equals c squared.
  • The hypotenuse (longest side) is 5.0000 units.
  • Area: 6.0000 square units.
  • Perimeter: 12.0000 units.

Next stepYou can now use the right-triangle relationships: sin(angle) = opposite/hypotenuse, cos(angle) = adjacent/hypotenuse, tan(angle) = opposite/adjacent.

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