Hypotenuse

usgb/haɪˈpɑːtənuːs/
noun

The longest side of a right-angled triangle, opposite the right angle.

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.
Visual representation of "hypotenuse" - The longest side of a right-angled triangle, opposite the right angle.

Often appears as...

  • pythagorean theorem
  • square of the hypotenuse

Usage tips

Technical

Definition 1 of 1
Visual representation of "hypotenuse"
LampPro Tip 1/3

Geometric Focus

Understand that 'hypotenuse' specifically refers to triangles with one 90-degree angle.

Illustration for Geometric Focus
The length of the hypotenuse can be calculated using the other two sides.
LampPro Tip 2/3

Not Just Any Side

Remember that 'hypotenuse' is not used for any side of a triangle, but exclusively for the longest one in a right triangle.

Illustration for Not Just Any Side
When we say the hypotenuse, we're talking about the side across from the right angle.
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Mathematical Language

Hypotenuse is a term mostly found in mathematical or educational contexts, less in everyday conversation.

Illustration for Mathematical Language
During math class, we learned how to calculate the hypotenuse.
Visual representation of the word "Hypotenuse"

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