Question

PLS HELP ASAP I NEED THIS

Answer 1

D

Explanation:

Firstly let's see definition of Rational numbers ,

Rational numbers :-

• The number in the form of p/ q where p and q are integers and q is not equal to zero is called a Rational number .

From the options , look at option D ,its

→ √400

→ √{20²}

→ 20

Hence option D is correct.