Question

Vi. Which one of the following is NOT a perfect square?
a. 625
b. 156
c. 196

Answer 1

b. 156

Explanation:

A "perfect square" is the product of an integer that is being multiplied by itself.

Choice a, 625, is a perfect square because it is the product of 25 multiplied by itself.

• 25 x 25 = 625

Choice b, 156, is not a perfect square because you cannot find any integer that can be multiplied by itself that will result in 156 as a product. Therefore, this is the correct answer.

Choice c, 196, is a perfect square because it is the product of 14 multiplied by itself.

• 14 x 14 = 196