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The area of a square is 215 square cm. Find the length of a side to the nearest tenth. Find its perimiter.

Sagot :

length of a side = 14.7cm

Perimeter = 58.8cm

Explanation:

The area of a square = 215 cm²

Area of a square = length²

Find the square root of both sides:

length = √Area

length = √215cm²

length of a side = 14.7cm (nearest tenth)

Perimeter = length +length +length +length

Perimeter = 4*Length

[tex]\begin{gathered} \text{perimeter = 4}\times\text{ 14.7} \\ \text{perimeter = }58.8\operatorname{cm} \end{gathered}[/tex]

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