Hello there! I was studying triangles and i came across this - if in a right triangle the base and perpendicular are 1 unit each, then the hypotenuse will be √2 units. But how can we measure an irrational length? What does an irrational length mean? Is it approximated to 1.4?

The other question is that we say 7 is a rational no. Because 7 can be expressed in the form of p/q as 7/1

Similarly, can √2 be expressed as √2 / 1 ? Does this make it RATIONAL?? Why not?