Class 8 Maths – Chapter 6
Squares and Square Roots
Worksheet Answers

Section A – Answers

1. Square of 9 = 9 × 9 = 81
2. Square of 15 = 15 × 15 = 225
3. √25 = 5
4. Yes, 36 is a perfect square because 6 × 6 = 36.
5. First three square numbers are 1, 4, 9.

Section B – Answers

1. 144 = 2 × 2 × 2 × 2 × 3 × 3
   √144 = 2 × 2 × 3 = 12
2. Square of 23 = 23 × 23 = 529
3. 50 = 2 × 5 × 5
   Since all factors are not in pairs, 50 is not a perfect square.
4. 72 = 2 × 2 × 2 × 3 × 3
   Unpaired factor = 2
   Required number = 2
5. √196 = 14

Section C – Answers

1. 180 = 2 × 2 × 3 × 3 × 5
   Unpaired factor = 5
   Required number = 5
2. √1024 = 32
3. Perfect squares between 1 and 100 are:
   4, 9, 16, 25, 36, 49, 64, 81
   Total = 8 numbers
4. Smallest prime number is 2
   Square = 2 × 2 = 4

⭐ Exam Note

Always show steps clearly and underline the final answer. This helps the examiner give full marks.

📘 Prepared by Shaktimatha Learning | Class 8 Maths