Class 8 Maths – Chapter 6
Squares and Square Roots
MCQs

Choose the correct answer

1. What is the square of 15?

A) 215
B) 225
C) 235
D) 245

Answer: B) 225

2. Which of the following is a perfect square?

A) 20
B) 45
C) 64
D) 75

Answer: C) 64

3. The square root of 144 is:

A) 10
B) 11
C) 12
D) 13

Answer: C) 12

4. Square numbers always end with:

A) 2,3,7
B) 1,4,5,6,9,0
C) 8 only
D) 3,5 only

Answer: B) 1,4,5,6,9,0

5. If √x = 9, then x = ?

A) 18
B) 27
C) 72
D) 81

Answer: D) 81

6. Which method is best to find square root of a perfect square?

A) Division method
B) Prime factorisation method
C) Estimation method
D) Trial method

Answer: B) Prime factorisation method