The playground

The playground has the shape of a square with a side of 64 m. It is fenced on three sides. What is the area of the playground and how long is its fence?

Correct answer:

S =  4096 m²
o =  192 m

Step-by-step explanation:

$$\begin{gathered} a=64\text{ m } \\ S=a\cdot a=64\cdot 64=4096{\text{m}}^2 \end{gathered}$$

$o=3\cdot a=3\cdot 64=192\text{ m}$

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