Question

which of the following numbers are not perfect squares a)81 b)92 c)400 d)143​

Answer 1

Answer:

b) 92 and d) 143

Step-by-step explanation:

81 = 9 x 9

400 = 20 x 20

Answer 2

92 and 143

Step-by-step explanation:

square root of 81 is 9 and

square root of 400 is 20.

so, they are perfect squares .

92 and 143 are not perfect squares