Geometry and TrigonometryEasyHypotenuse of a 3-4-5 triangle
Geometry and Trigonometry practice question
A right triangle has legs of length 3 and 4. What is the length of its hypotenuse?
Answer: 5
By the Pythagorean theorem, 3² + 4² = 9 + 16 = 25, and √25 = 5.
Common wrong answers
- If you answered 7
- 7 is 3 + 4.
- If you answered 12
- 12 is 3 × 4.
- If you answered 25
- 25 is the square of the hypotenuse.
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