Question

Which of the following is a rational number? (4 points) square root 15 square root 16, square root 21, square root 22

Answer 1

√16=4 (rational)
√15=3.872983346 (irrational)
√21=4.582575695 (irrational)
√22=4.6904157598 (irrational)

hence

square root of 16 is rational

Answer 2

√16=4 is the rational number and it is square root by taking radical values.

The rationalizing values are squared to the number and their roots.

The square numbers are gathered towards and bring forth numbers that are rational one.

At that point, it is going to study based on student and might wonder what rational number is.