1, 4, 9, 16, 25
5
4
80
the answer is 1. there is only 1 perfect square beteen 30 and 40.
The next two square numbers after 30 are 36 and 49
900
2 (4x4=16 and 5x5=25
Just multiply the two numbers together. You have 900 square feet.
25
30
Multiply the two numbers and you get 1,800 square inches. Each square foot has 144 square inches. So you get 12.5 square feet.