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April 1, 2015

April 1, 2015

Posted by **Jnr John** on Sunday, July 21, 2013 at 7:49am.

- Math<Please Help> -
**MathMate**, Sunday, July 21, 2013 at 9:03amSimple way:

Multiply the planar area (25m*12m) by the average depth of (1+4)/2=2.5m

to get volume= 750 m³.

Calculate the area of the trapezoid which is obtained by cutting a vertical section along the length:

25*(1+4)/2.

Multiply the above by the width of 12 m to get the volume of the trapezoidal prism: 12*25*(1+4)/2=750 m³.

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