Pythagorean Theorem & Hypotenuse Calculator
Solve for any side of a right-angled triangle (Side A, Side B, or Hypotenuse C) using the Pythagorean formula a² + b² = c².
This hypotenuse page is tuned for quickly finding the longest side of a right triangle from the two legs. It defaults to solving for side c.
Calculated Triangle Properties
Side a3.0000
Side b4.0000
Hypotenuse c5.0000
Angle A / B36.87° / 53.13°
Area / Perimeter6.0000 / 12.0000
Pythagorean Solving Steps:
c = √(a² + b²) = √(3² + 4²) = √(9 + 16) = √(25) ≈ 5.0000Frequently Asked Questions
What is the Pythagorean Theorem?
The Pythagorean Theorem states that in a right-angled triangle, the square of the hypotenuse (c) is equal to the sum of the squares of the other two sides (a and b): a² + b² = c².
What is the hypotenuse?
The hypotenuse is the longest side of a right-angled triangle, always opposite the 90-degree right angle.