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A square sand box has an area of 75 square feet . Estimate the length of one of the sides of the sand box

 Sep 14, 2022
 #1
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8.66

 Sep 14, 2022
 #2
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A square sand box has an area of 75 square feet .

Estimate the length of one of the sides of the sand box  

 

          8 squared is 64  

          9 squared is 81 

 

So the answer is between 8 and 9. 

 

Refine this further.  Check halfway between them. 

 

8.5 is easy to square.  8.52 = 72.25 

 

So the answer is between 8.5 and 9   That's what they call an "estimate"  

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 Sep 14, 2022

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