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Word problemsArithmeticMiddle schoolabout 0:42

The hypotenuse of a right triangle with legs 3 and 4: animated lesson

A narrated, step-by-step word problems video lesson with captions. Final answer: Hypotenuse = 5.

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Video with a synthetic English voice and captions. Pick another language for subtitles in that language, or open the interactive version.

Video narrated by a synthetic voice (Piper TTS, en_US-ljspeech-high voice (LJ Speech dataset, public domain)); the steps come from our maths engine and the answer was checked independently. Download MP4 (0.3 MB) · Captions (WebVTT)

Steps on screen

1. The problem
Worked example
The hypotenuse of a right triangle with legs 3 and 4
2. Step by step
1. Pythagorean theorem
2. Square root
3. The answer
$\text{Hypotenuse = 5}$
Hypotenuse = 5
4. Check
- 3² + 4² = 5² ✓

Transcript

The problem. Here is the problem: The hypotenuse of a right triangle with legs 3 and 4. Right triangle with legs 3 and 4; the hypotenuse follows from a squared plus b squared equals c squared.

Step by step. Pythagorean theorem. c squared equals 3 squared plus 4 squared equals 25. Square root. c equals the square root of 25 equals 5.

The answer. So the answer is Hypotenuse equals 5. Right triangle with legs 3 and 4; the hypotenuse follows from a squared plus b squared equals c squared.

Check. 3 squared plus 4 squared equals 5 squared, which checks out.

About word problems

Turn everyday situations about prices, speed, ages and interest into equations and solve them.

The hypotenuse of a right triangle with legs 3 and 4