The square of a number is the product of the number with the number itself.
For a given number x, the square of x is (x × x), denoted by **x²**.

**For example:**

**●** 2² = (**2 × 2**) = 4 and we say that the square of 2 is 4.**●** 3² = (**3 × 3**) = 9 and we say that the square of 3 is 9.**●** 4² = (**4 × 4**) = 16 and we say that the square of 4 is 16. **●** 5² = (**5 × 5**) = 25 and we say that the square of 5 is 25.**●** 6² = (**6 × 6**) = 36 and we say that the square of 6 is 36.**●** 7² = (**7 × 7**) = 49 and we say that the square of 7 is 49.**●** 8² = (**8 × 8**) = 64 and we say that the square of 8 is 64.**●** 9² = (**9 × 9**) = 81 and we say that the square of 9 is 81.

**●** 10² = (**10 × 10**) = 100 and we say that the square of 10 is 100.

**●** 11² = (**11 × 11**) = 121 and we say that the square of 11 is 121.

**●** 12² = (**12 × 12**) = 144 and we say that the square of 12 is 144.

**●** 13² = (**13 × 13**) = 169 and we say that the square of 13 is 169.

**●** 14² = (**14 × 14**) = 196 and we say that the square of 14 is 196.

**●** 15² = (**15 × 15**) = 225 and we say that the square of 15 is 225.

**Note:**

**The square of a negative number is always positive.**

**●** (-2)² = (**(-2) × (-2)**) = 4 and we say that the square of (-2) is 4.

**●** (-3)² = (**(-3) × (-3)**) = 9 and we say that the square of (-3) is 9.

**●** (-4)² = (**(-4) × (-4)**) = 16 and we say that the square of (-4) is 16.

**●** (-5)² = (**(-5) × (-5)**) = 25 and we say that the square of (-5) is 25.

**●** (-6)² = (**(-6) × (-6)**) = 36 and we say that the square of (-6) is 36.

**●** (-7)² = (**(-7) × (-7)**) = 49 and we say that the square of (-7) is 49.

**●** (-8)² = (**(-8) × (-8)**) = 64 and we say that the square of (-8) is 64.

**●** (-9)² = (**(-9) × (-9)**) = 81 and we say that the square of (-9) is 81.

**●** (-10)² = (**(-10) × (-10)**) = 100 and we say that the square of (-10) is 100.

**●** (-11)² = (**(-11) × (-11)**) = 121 and we say that the square of (-11) is 121.

**●** (-12)² = (**(-12) × (-12)**) = 144 and we say that the square of (-12) is 144.

**●** (-13)² = (**(-13) × (-13)**) = 169 and we say that the square of (-13) is 169.

**●** (-14)² = (**(-14) × (-14)**) = 196 and we say that the square of (-14) is 196.

**●** (-15)² = (**(-15) × (-15)**) = 225 and we say that the square of (-15) is 225.

When a number is multiplied by itself, the product obtained is called the square of a number. Thus, the number with exponent 2 is called the square number.

**For example: **

2/7 × 2/7 = (2/7)² = ⁴ /₄₉

Here ⁴ /₄₉ is the square of ² /₇.

0.1 × 0.1 = (0.1)² = 0.01

Here 0.01 is the square of 0.1.

● **Square**

**Perfect Square or Square Number**

● **Square - Worksheets**

**8th Grade Math Practice** **From Square to HOME PAGE**

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