Is 150 a perfect square

No its not.

The following is a list of perfect squares. 12 = 1

22 = 4

32 = 9

42 = 16

52 = 25

62 = 36

72 = 49

82 = 64

92 = 81

102 = 100

112 = 121

122 = 144 Hope this helped. --Paulette