asked 151k views
11 votes
Which of these numbers is a

perfect square?
How do you know?
a) 10
b) 50
c) 81
d) 20

1 Answer

10 votes

Answer:

C. 81 because 9 going to make 81 an perfect square.

answered
User Laxmi Kadariya
by
8.0k points

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