Divide it into 2 pieces and work out the volume of each piece separately and then add the volumes together
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The volume of a rectangular prism is found by multiplying the base by the rectangle by the width of the prism, leading to the formula: lwh = Awhere l is the length of the prismw is the width of the prism andh is the height of the prism.
By dividing it into two rectangles.
A cube is a rectangular prism with all sides of the same length. So, volume of a rectangular prism is Length*Breadth*Height = L*B*H But for a cube, L = B = H so volume = L*L*L = L3
Volume = 1/2*(a+b)*h*l where a and b are the lengths of the parallel sides of the trapezium, h is the height of the trapezium, and l is the length of the prism.
V = l × w × h