Did pi ever solve a problem?

The constant "pi" 0,314159...... is used in every branch of science, from calculating material quantity for domes in construction to calculating absorption properties of new substances in chemistry.

To calculate the circumference of a circle = c = 2(pi)r

The area of a circle a = (pi)r² you can also use the formula (pi)d to find the circumference

Although pi has solved countless problems, no problem has ever been solved with whatever pi equals EXACTLY. Therefore, when using pi to solve a problem, the majority of mathematicians and scientists round pi down to 3.14