81 is a perfect square because 81 = 9 x 9
81 is a perfect squarebecause 81 = 9*9. It is NOT a perfect cube.
The perfect square of 9 is 81.
81 is a perfect square. 9 x 9 = 81
Because 9*9 = 81
81
It is: 81
81
The next perfect square after 81 (92) is 100 (102).
Because 9*9 = 81 which is a square number or a perfect square.
Yes because 9*9 = 81
81