Question

Which of the following is a perfect square? *
1 point
A. 1057
B 625
C. 7928
D. 64000

Answer 1

Answer:

25X25=625

Step-by-step explanation:

as 25 is the root it is the perfect square of 625

Answer 2

Option (b) 625 is a perfect square.

Given:

Which of the following is a perfect square?  

A. 1057

B 625

C. 7928

D. 64000

Step-by-step solution :

• Square numbers never end with 2, 3, 7, or 8.

• The perfect square number always ends with even zeros, 1, 4, 5, 6, and 9.

• The number of zeros at the end of a square number is always even.

• A number ending with an odd number of zeros is never a perfect square.

Lets check the given options:

1) The square root of 1057 = √1057 = 32.51

2) The square root of 625 = √625 = 25

3) The square root of 7928 = √7928 = 89.03

4) The square root of 64000 = √64000 = 252.98

Hence, the required answer is an option (b) 625.