Diamond

The diamond has a circumference of 48cm. Calculate the length of its side in dm.

Correct answer:

a =  1.2 dm

Step-by-step explanation:

$$\begin{gathered} o=48\mathrm{/}10={\displaystyle \frac{24}{5}}=4.8\text{ dm } \\ a=o\mathrm{/}4=4.8\mathrm{/}4=1.2\text{ dm} \end{gathered}$$

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