Bricklayer

How much do we pay for a bricklayer laying a pavement in a square room with a diagonal of 8 m, if 1 sqm with work will cost for CZK 420?

Correct answer:

x =  13440 Kc

Step-by-step explanation:

$$\begin{gathered} u=8\text{ m } \\ a=u\mathrm{/}\sqrt{2}=8\mathrm{/}\sqrt{2}=4\sqrt{2}\text{ m}\doteq 5.6569\text{ m } \\ S=a^2=5.6569^2=32{\text{m}}^2 \\ x=420\cdot S=420\cdot 32=13440\text{ Kc} \end{gathered}$$

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