Question

please solve this it is very confusing ch for me.​

Answer 1

3. a.7×7= 49

so the square is said to be odd..

b.last number is 2

so, 2×2 = 4

hence the square number is even.

4. a. 25

1+3+5+7+9= 25

b. 36

1+3+5+7+9+11=36

In this problem ,

a. 25 = 5 square

so , addition of first five odd numbers = 25.

b. 36 = 6 square.

so, addition if first six odd numbers = 36.