What is square root?

-Square root is the inverse of squaring.

-It is a number multiplied by itself.

Square Root van be thought of as aside in a square.

You can find the approximate **√ of a number using perfect square. the whole number is the same as the smaller perfect square for all √ in between.**

**To estimate a fractional √ we can find find the whole number.**

**-To find the denominator of the fraction we subtract the perfect squares.**

**(25-16=9)**

-To find the numerator we count the **√****positions between a perfect**

Textbook Questions**squares.**

**4,5, 12,and 15**

**5) estimate each value, to one decimal place. Check your answer with calculator.**

**1****2) While shopping online, Ji Hun finds a square rug with an area of 11m² .**** He needs to know if it will fit in his 4mx5m bedroom.**

*a)**Estimate the side length of the rug, to one decimal place.*

*b)Check your estimate with a calculator.*

**√ 3.316**

*c )Will the rug fit? Explain.*

Yes, because the area of the bedroom is 20m² . The square root of the area which is 20 is 4.472 and the square root of the rug (11) is **√ 3.316 .**

**15) Order the following numbers from least to greatest 7, ****√46, 5.8,√27,6.3**

**7x7=49**

**√46**

**6.3x6.3= 39.6**

**5.8x5.8= 33.8**

**√27**

**answer: ****√27 ,5.8,6.3,√46 ,7**

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