



 
Wes, I drew a crosssection of the levee. The volume of the levee is the area of the crosssection times the length of 290 feet. The crosssection can be seen as three pieces, a 10 foot by 15 foot rectangle and two right triangles, each with legs of length 15 feet and 30 feet. The area of a triangle is 1/2 × base × height so the area of the cross section is
Thus the volume of the levee is
But you want the volume in cubic yards so I would convert each measurement to yards before performing the calculation. Thus the volume is
Penny  


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