Chapter 1) The square and the square Roots

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Q1. What is the square of 4 ?

A) 12
B) 16
C) 11
D) 8

Q2. What is the square of 21?

A) 441
B) 321
C) 42 cm
D) 414 cm

Q3. What is the square root of 400 ?

A) 10
B) 20
C) 40
D) 2.0

Q4. What is the square of 11/12

A) 144/121
B) 121/144
C) 121
D) 144

Q5. The square of the neagative number is always ............ number.

A) both positive and negative
B) decimal
C) negative
D) positive

Q6. What is the value of 2⁵?

A) 18
B) 16
C) 32
D) 4

Q7. What is the value of 5³?

A) 125
B) 25
C) 625
D) 555

Q8. A number which is a square of an integer is called a ................ .

A) inprerfect square
B) rational
C) integer
D) perfect square

Q9. Every positive number has ............... square roots.

A) three
B) one
C) two
D) one and only one

Q10. What is the square root of 64?

A) 8
B) 4
C) 6
D) 7