Question 1083748
<pre>
Area of any right cylinder = (Area of bottom) times (length)

The area of a trapezoid is

{{{A=expr(h/2)(B+b)}}}

Substitute h=5, B=18, b=9, to calculate the area of the base.

Then multiply that by the length l=26.

That will give you the answer in cubic meters.

Edwin</pre>