MCQs
169 is the perfect square of……………
a) 9
b) 13
c) 19
d) 23
Square of 28…………
a) 144
b) 742
c) 784
d) 169
Solution: 28 × 28 = 282=784
The square of any even number is…….
a) Even
b) Negative
c) Prime d) Odd
Solution:22 = 4 or 42 = 16
The area of square whose length of one side is 8m is……….
a) 16 m2
b)36 m2
c)32 m2
d)64 m2
Solution:A= S2 = S × S = 8 × 8 = 82 =64
Which one is not perfect square?
a) 16
b) 18
c) 25
d) 81
Solution: 18= 2 × 3 × 3 = 2 × 32
