How to Find the Hypotenuse
c = √(a² + b²)
To find the hypotenuse, square the legs, add them, and take the square root.
The hypotenuse is the side opposite the right angle and is always the longest side.
1Hypotenuse steps
Write the formula
Start with c² = a² + b².
c² = a² + b²
Square the legs
Calculate a² and b² using the known side lengths.
c² = 9 + 16
Add them
Sum the squares to get c².
c² = 25
Square root
Take √ to solve for c.
c = 5
Hypotenuse FAQ
Q1.Which side is the hypotenuse?
It is the side opposite the 90° angle.
Q2.Can the hypotenuse be shorter than a leg?
No. It is always the longest side of a right triangle.
Q3.Do I need units?
Units are optional, but keep them consistent for all sides.
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