The garden

The garden has the shape of a rectangular trapezium. The bases have lengths of 27 meters and 36 meters, the trapezoid's height is 12 meters. Calculate how much fence will cost this garden if one meter costs 1.5 €?

Correct result:

o =  135 Eur

Solution:

$$\begin{gathered} a=27\text{ m } \\ c=36\text{ m } \\ h=12\text{ m } \\ b=\sqrt{h^2+(a-c{)}^2}=\sqrt{12^2+(27-36{)}^2}=15\text{ m } \\ {o}_1=a+b+c+h=27+15+36+12=90\text{ m } \\ p=1.5\text{ Eur/m } \\ o=p\cdot o_1=1.5\cdot 90=135\text{ Eur} \end{gathered}$$

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