1. What is the number whose area is 16 unit square?4 4
Ans: 4

2. What is the number whose area is 9 unit square?3 3
Ans: 3

3. 4 2 2
Ans: 2

4. What are the numbers that fit 2? Let’s find it!!!

5. Let’s try
1,21
1,1
1,1

6. 1,44
1,2
1,2

7. 1,69
1,3
1,3

8. 1,96
1,4
1,4

9. 2,25
1,5
1,5
No !
It is too much

10. Get close to “2”
1,9881
1,41
1,41

11. 1,99396
1,414
1,414

12. 1,
1,4142
1,4142

13. 1,
1,41421
1,41421

14. 1,
1,414213
1,414213

15. 1, 1, 1,
It keeps going on

16. 1, 1, 1,
Here it is
is the number whose square is 2. This number is represented in mathematics as
( )2 ≈ 2