Perfect Squares in Mathematics
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Questions and Answers

What is the value of $7²$?

  • 49 (correct)
  • 36
  • 64
  • 56

What is the result of $12²$?

  • 169
  • 196
  • 144 (correct)
  • 121

Which number corresponds to $15²$?

  • 289
  • 256
  • 196
  • 225 (correct)

Determine the value of $9²$.

<p>81 (D)</p> Signup and view all the answers

What is the value of $16²$?

<p>256 (C)</p> Signup and view all the answers

Study Notes

Perfect Squares

  • Definition: A perfect square is an integer that can be expressed as the square of another integer.

List of Perfect Squares

  1. 1² = 1
  2. 2² = 4
  3. 3² = 9
  4. 4² = 16
  5. 5² = 25
  6. 6² = 36
  7. 7² = 49
  8. 8² = 64
  9. 9² = 81
  10. 10² = 100
  11. 11² = 121
  12. 12² = 144
  13. 13² = 169
  14. 14² = 196
  15. 15² = 225
  16. 16² = 256
  17. 17² = 289
  18. 18² = 324
  19. 19² = 361
  20. 20² = 400

Properties of Perfect Squares

  • Always non-negative.
  • The square root of a perfect square is an integer.
  • The last digit of a perfect square can only be 0, 1, 4, 5, 6, or 9.
  • The difference between consecutive perfect squares increases linearly (e.g., 1, 3, 5, 7,...).

Applications of Perfect Squares

  • Used in geometry to calculate areas of squares.
  • Important in algebra for factoring and solving quadratic equations.

Definition of Perfect Squares

  • A perfect square is an integer that can be written as the square of an integer.

List of Perfect Squares

  • 1 is a perfect square (1² = 1).
  • 2 produces 4 (2² = 4).
  • 3 results in 9 (3² = 9).
  • 4 gives 16 (4² = 16).
  • 5 squares to 25 (5² = 25).
  • 6 yields 36 (6² = 36).
  • 7 equals 49 (7² = 49).
  • 8 results in 64 (8² = 64).
  • 9 produces 81 (9² = 81).
  • 10 squares to 100 (10² = 100).
  • 11 results in 121 (11² = 121).
  • 12 yields 144 (12² = 144).
  • 13 equals 169 (13² = 169).
  • 14 produces 196 (14² = 196).
  • 15 results in 225 (15² = 225).
  • 16 squares to 256 (16² = 256).
  • 17 gives 289 (17² = 289).
  • 18 results in 324 (18² = 324).
  • 19 equals 361 (19² = 361).
  • 20 results in 400 (20² = 400).

Properties of Perfect Squares

  • Perfect squares are always non-negative.
  • The square root of a perfect square is always an integer.
  • The last digit of perfect squares can only be 0, 1, 4, 5, 6, or 9.
  • Differences between consecutive perfect squares follow a linear pattern (1, 3, 5, 7,...).

Applications of Perfect Squares

  • Essential in geometry for calculating the areas of squares.
  • Key in algebra for factoring and solving quadratic equations.

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Description

Explore the fascinating world of perfect squares through this quiz. Test your understanding of their definitions, properties, and applications in various mathematical contexts. Ideal for those studying basic algebra and geometry concepts.

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