Question

without adding tell the perfect square of(with method used) 1+3+5+7+9= 1+3+5+7+9+11+13+15= 1+3+5= 1+3+5+7+9+11= 1+3+5+7+9+11+13+15+17+19= DON'T FORGET TO EXPLAINED WITH METHOD USED PLEASE

Answer 1

Answer:

Step-by-step explanation:

1+3+5+7+9=25 this is because the number of odd numbers=5 and 5 square=25. If you want you can check this method with other numbers also

Hope you have understood the concept

Answer 2

Answer:

1+3+5+7+9= 5 =5 square =25

1+3+5+7+9+11+13+15=8 =8 square =64

1+3+5=3 =3 square =9

1+3+5+7+9+11=6 =6 square =36

1+3+5+7+9+11+13+15+17+19=10 =10 square=100

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Hope it help.