Question

Which of t he numbers below can be written as a square?

(i) 2.5

(ii) 0.25

(iii) 0.0016

(iv) 14.4

(v) 1.44

Answer 1

(i) 2.5 =

The denominator of is 10, which is not a perfect square.

So, the number 2.5 is not a perfect square.

(ii) 0.25 =

So, the number 0.25 is a perfect square.

(iii) 0.0016 =

So, the number 0.0016 is a perfect square.

(iv) 14.4 =

The denominator of is 10, which is not a perfect square.

So, the number 14.4 is not a perfect square.

(v) 1.44 =

So, the number 1.44 is a perfect square.