here's a chart on wiki
http://en.wikipedia.org/wiki/Square_number

Quote:
It's not 3ft^2. Its (3ft)^2 =3ft * 3 ft = 9 ft^2.


find 9^2 below

0^2 = 0
1^2 = 1
2^2 = 4
3^2 = 9
4^2 = 16
5^2 = 25
6^2 = 36
7^2 = 49
8^2 = 64
9^2 = 81
10^2 = 100

9^2 = 81

Quote:
3ft * 3 ft = 9 ft^2.


Quote:
No, 4 is not 2^2 without notation.


count the square feet , are there 81 sq ft in a 3 ft x 3 ft area?

you guys really could use a good refresher course.
TFF , your students may need one also.






3/4 inch of dust build up on the moon in 4.527 billion years,LOL and QM is fantasy science.