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Ayushree
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To find the side, take the square root of 441. Since 21 × 21 = 441, the side length of the square is 21 meters. So, the side is 21 m. Class 8 NCERT Ganita Prakash Chapter 1 A Square and ...

class 8 maths a square and a cube chapter 1 mcqclass 8 maths a square and a cube extra questions @tiwari_academylength of the side of a square whose area is 441 m²
Ayushree
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Yes: 1331 → 11³ 4913 → 17³ 12167 → 23³ 32768 → 32³ The cube roots are guessed by memorising cube tables or checking ending digits and nearby cube ranges. Class 8 Mathematics Textbook Chapter 1 A Square and A Cube ...

1331 is a perfect cubeclass 8 maths a square and a cube chapter 1 mcqclass 8 maths ganita prakash chapter 1 question answer
Ayushree
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Here are five such numbers: 73, 88, 102, 57 and 69. All these numbers end with 3, 8, 2, 7 or 9. Except 9, the others never appear as the unit digit of square numbers, so they are not squares. Class ...

5 numbers such that you can determine by looking at their unitsclass 8 maths a square and a cube chapter 1 mcqclass 8 maths a square and a cube extra questions @tiwari_academy