Question

Which numbers are perfect squares? Check all that apply.A361B 140C 225D36E 121F75

Answer 1

$A,C,D,E$

1) Considering that "perfect squares" are the numbers that yield square root exact numbers we can check the following list.

2) So we have:

$\begin{gathered} \sqrt[]{361}=19 \\ \sqrt[]{225}=15 \\ \sqrt[]{36}=6 \\ \sqrt[]{121}=11 \\ \end{gathered}$

So these are the perfect squares