Multiple choice

The sides of a right triangle are 3 and 4 units long. What is the length of the hypotenuse ?

  1. $3$
  2. $5$
  3. $7$
  4. $9$
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B Correct answer
Explanation

In a right triangle, the hypotenuse c is given by sqrt(a^2 + b^2). sqrt(3^2 + 4^2) = sqrt(9 + 16) = sqrt(25) = 5.

AI explanation

Using the Pythagorean theorem, the square of the hypotenuse equals the sum of the squares of the other two sides. We calculate 3 squared plus 4 squared, which is 9 plus 16, giving 25. Taking the square root of 25 gives the length of the hypotenuse as 5.

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