Question

Which of the following is not perfect square 361,1156,1128,1681

Answer 1

Answer:

1128

Step-by-step explanation:

361 = (19×19) = $19^{2}$, perfect square

1156 = (2×2×17×17) = ($2^{2}$×$17^{2}$), perfect square

1681 = ( 41×41) = ($41^{2}$), perfect square

1128 = (2×2×2×3×4×7), is not perfect aquare

Answer 2

Answer:

1128 is correct