Triangle 18923

The sticker is shaped like a triangle with a side 5.4 cm long and 3 cm high. Most of such stickers can be made of 1 m square paper. Thank you

Correct answer:

n =  1234

Step-by-step explanation:

$$\begin{gathered} S_1=1{\text{m}}^2\to {\text{dm}}^2=1\cdot 100{\text{dm}}^2=100{\text{dm}}^2 \\ a=5.4\text{cm}\to \text{dm}=5.4:10\text{dm}=0.54\text{dm} \\ v=3\text{cm}\to \text{dm}=3:10\text{dm}=0.3\text{dm} \\ {S}_2=\frac{a\cdot v}{2}=\frac{\frac{27}{50}\cdot \frac{3}{10}}{2}=\frac{81}{1000}=0.081{\text{dm}}^2 \\ n=\lfloor \frac{S_1}{S_2}\rfloor =\lfloor \frac{100}{0.081}\rfloor =1234 \end{gathered}$$

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