# MCQ Questions for Class 8 Maths Chapter 6 Squares and Square Roots with Answers

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## Squares and Square Roots Class 8 MCQs Questions with Answers

Choose the correct option.

Question 1.
Which of the following is a perfect square number.
(a) 453
(b) 8657
(c) 93542
(d) 729

Question 2.
Which of 225², 97², 53² and 809² would end with digit 1.
(a) 225²
(b) 97²
(c) 53²
(d) 809²

Question 3.
What will be the number of zeros in the square of the number 7000?
(a) 3
(b) 5
(c) 6
(d) 9

Question 4.
How many natural numbers lie between 13² and 14².
(a) 24
(b) 25
(c) 26
(d) 27

Question 5.
Express the square number 5² as the sum of two consecutive integers.
(a) 12 + 13
(b) 10 + 15
(c) 9 + 16
(d) 20 + 5

Question 6.
Which of the following is not a Pythagorean triplet?
(a) 6, 8, 10
(b) 8, 15, 17
(c) 2, 5, 7
(d) 5, 12, 13

Question 7.
What could be the possible one’s digit of the no. whose square is 361?
(a) 3, 4
(b) 6, 7
(c) 1, 9
(d) 7, 8

Question 8.
The smallest number by which 75 should be multiplied so as to get a perfect square is
(a) 2
(b) 3
(c) 5
(d) 7

Question 9.
The number of digits in the square root of 78400 is ………….
(a) 1
(b) 2
(c) 3
(d) 4

Question 10.
Which of the following is the number of non-perfect square number between 17² and 18²?
(a) 613
(b) 35
(c) 70
(d) 34

Question 11.
Which of the following can be a perfect square?
(a) A number ending in 3 or 7
(b) A number ending with odd number of zeros
(c) A number ending with even number of zeros
(d) A number ending in 2.

Answer: (c) A number ending with even number of zeros

Question 12.
Which of the following can be the square of a natural number ‘n’?
(a) sum of the squares of first n natural numbers
(b) sum of the first n natural numbers
(c) sum of first (n – 1) natural numbers
(d) sum of first ‘n’ odd natural numbers.

Answer: (d) sum of first ‘n’ odd natural numbers.

Fill in the blanks

Question 1.
1² = 1 then the square root of 1 is ………………..

Question 2.
8² = 64 then square root of ……………… = 8.

Question 3.
The number of digits in the square root of 441 is ……………..

Question 4.
The smallest 3-digit perfect square is ………………….