Question

1. describe a real - life situation in which you might encounter an irrational number.

Explanation:

In calculating a circle's circumference or area using $\pi$, which is irrational. When finding the diagonal of a square with side - length 1, $\sqrt{2}$ (irrational) is involved.

Answer:

Calculating a circle's circumference/area (using $\pi$) or finding a square's diagonal (using $\sqrt{2}$).