8th Grade · Geometry
Hypotenuse
8.G.B.6
Definition
The longest side of a right triangle, located opposite the right angle. In the Pythagorean theorem it is the side labeled c.
Teach it
Where it is taught, with guided notes, practice, homework, an exit ticket and an interactive Teacher Deck.
Examples
- In a2+b2 = c2, the hypotenuse is always c.
- It's always the side directly across from the 90° angle.
Key rule
The hypotenuse is always the longest side and always opposite the right angle.
Memory hook
The longest side, across from the right angle.