Company 6387

At the foot of the house are three columns with a square base 2.5 m high and 6 dm thick. How much do we pay if we want to cover them with boards and the company charges 12 euros per 1 square meter?

Correct answer:

x =  216 Eur

Step-by-step explanation:

$$\begin{gathered} a=6\text{dm}\to \text{m}=6:10\text{m}=0.6\text{m} \\ h=2.5\text{m} \\ {S}_1=4\cdot a\cdot h=4\cdot 0.6\cdot 2.5=6{\text{m}}^2 \\ S=3\cdot S_1=3\cdot 6=18{\text{m}}^2 \\ x=12\cdot S=12\cdot 18=216\text{Eur} \end{gathered}$$

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