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  • 14-09-2020
  • Mathematics
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the area of a square poster is 31 square inches. find the length of one side of the poster. Explain

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  • 14-09-2020

Answer:

5.57

Step-by-step explanation:

In order to find the are of a square you would use the equation a². However, since you are finding the length of one side and its a square, you use the equation [tex]\sqrt{a}[/tex]. The area of this square is 31 sq in., so you would replace a with 31. The equation then becomes [tex]\sqrt{31}[/tex]. When out into a calculator, the answer is 5.567764... which rounded up to the nearest hundreth is 5.57.

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