Pythagoras' theorem

British  

noun

1. the theorem that in a right-angled triangle the square of the length of the hypotenuse equals the sum of the squares of the other two sides

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Example Sentences

“A lot of the basic trig ‘identities’ are nothing more than Pythagoras’ theorem,” explains Anderson, referring to equations that describe relationships among different trigonometric functions.

From Scientific American

“Pythagoras’ theorem tells us,” Hughes writes, that |Vx|2 + |Vy|2 + |Vz|2 = V2.

From Scientific American

And of course there are some longstanding but incorrect traditions, such as “Pythagoras’ theorem” and “St James’ Park”, the official name of Newcastle United’s stadium.

From The Guardian

“There was always this warm-up period where kids were talking about movies or television, and then there’d be this abrupt transition to Pythagoras Theorem,” he says.

From Time

You could have s and s that are prime numbers, s and s that are square roots of successive integers or s and s that represent the Pythagoras theorem for a unit rectangle.

From Scientific American