Question

4 mm
3 mm
What is the length of the hypotenuse?

Answer 1

5mm using Pythagorean’s theorem

Answer 2

5 mm

Explanation:

This is what's known as a Pythagorean triple. Whenever two legs are 3 and 4, the third leg must be 5! You can figure this out without even having to do calculations. So don't do them!