Which of the following is an irrational number square 25 pi

or 0/27

The irrational number is 25 pi.

To determine which of the following is an irrational number, let's evaluate them individually:

1. Square of 25π:
To find the square of 25π, we can calculate it as (25π)^2. This yields 625π^2. Since π is an irrational number (approximately 3.14159), π^2 will also be irrational. Therefore, 625π^2 is an irrational number.

2. 0/27:
The value 0/27 represents a fraction where the numerator is 0. Any fraction where the numerator is 0 is equal to 0. Therefore, 0/27 is not an irrational number.

In conclusion, the square of 25π is the irrational number, while 0/27 is not an irrational number.