Question

how many non perfect square numbers are there between 9 square and 10 square​

Answer 1

Step-by-step explanation:

${10}^{2} - {9}^{2} -1 = 100 - 81-1 = 18$

Answer 2

There are total 18 natural numbers.

Step-by-step explanation:

Given : Numbers are there between 9 square and 10 square.

To find : How many non-perfect square numbers are there?

Solution :

We know that,

9^2=9\times9=81

10^2=10\times10=100

Total natural number between square of 9 and square of 10 are starting from 82 and up to 99.

As 81 and 100 both will not be included in these natural numbers.

The natural numbers are -

82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98 and 99

Therefore, There are total 18 natural numbers.