Which term is the number 400 in the sequence of perfect squares? How do you know?

400^2 = 160 000

Step-by-step explanation:

The sequence of perfect squares can be cosntructued by squaring the natural numbers.

That is, the first perfect square will be 1^2=2

the second will be 2^2 = 4

3rd - > 3^2 = 9

...

5 - > 5^2 = 25

...

300 - > 300^2 = 90 000

...

400 - > 400^2 = 160 000