Call the hypotenuse side in a right triangle that lies opposite the right angle. The hypotenuse is the longest side in a right triangle. The other sides in a right triangle are called legs.

The squared length of the hypotenuse equals the sum of the squares of the other two sides. That is, to find the square of the length of the hypotenuse you need to square the lengths of the legs and fold.

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The length of the hypotenuse is equal to the square root of the square of its length. To find its length, extract the square root of the number equal to the sum of the squares of the legs. The resulting number will be the length of the hypotenuse.

Note

The length of the hypotenuse is a positive value, therefore, when extracting the root, radical expression must be greater than zero.

Useful advice

In an isosceles right triangle the length of the hypotenuse can be calculated by multiplying the leg to the root of the two.

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See also

How to find the hypotenuse of two legs

How to find the length of the hypotenuse in a right triangle

How to calculate the hypotenuse in a right triangle

How to calculate the hypotenuse

How to find the length of a side of a right triangle

How to find the hypotenuse on the side and corners

How to calculate a side of a right triangle

How to find the hypotenuse, knowing a side and angle

How to calculate the hypotenuse

What are the sides of a right triangle

How to find the side of a triangle, knowing two sides