Embankment
The railway embankment is 300 m long and has a cross-section of an isosceles trapezoid with bases of 14 m and 8 m. The trapezoidal arms are 5 m long. Calculate the amount of soil in the embankment in m3.
Correct answer:

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Calculation of an isosceles triangle.
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Calculation of an isosceles triangle.
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