Why can't you find the value of pi in decimals?

Answer 1

For roughly the same reason that you can't write exactly 1/3 , 1/6 , 1/7 ,
or the square root of 2 as a decimal.

Many numbers have no exact decimal form. When you try to write one of them
as a decimal, you can get as close to the real thing as you want to be, by writing
more and more decimal places, but the decimal never comes out even and ends.