Questions and Answers
What is the value of $7²$?
What is the result of $12²$?
Which number corresponds to $15²$?
Determine the value of $9²$.
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What is the value of $16²$?
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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
- 1² = 1
- 2² = 4
- 3² = 9
- 4² = 16
- 5² = 25
- 6² = 36
- 7² = 49
- 8² = 64
- 9² = 81
- 10² = 100
- 11² = 121
- 12² = 144
- 13² = 169
- 14² = 196
- 15² = 225
- 16² = 256
- 17² = 289
- 18² = 324
- 19² = 361
- 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.
