Question

Which is a perfect square?

72
81
90
99

Answer 1

Which of these takes two of the same numbers to get the product?

Answer 2

such as 10 x 10 = 100 that is a perfect square

Answer 3

90?

Answer 4

nope that would be 10 x 9 those numbers are not the same

Answer 5

Which one of these numbers can you square root without getting an ugly decimal?

Answer 6

anything squared

Answer 7

that should help =)

Answer 8

um my guess is 81 bc \[9^{2}\] is 81

Answer 9

yep! :D

Answer 10

Thank you for explaining a perfect square better. :)

Answer 11

no probs try looking at this :)
http://www.mathsisfun.com/definitions/perfect-square.html