Question 1117119
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The other tutor showed the calculations for if the figures were rectangular prisms, not rectangular pyramids.  For pyramids, the formula is not<br>
{{{V = l*w*h}}}<br>
but rather<br>
{{{V = (l*w*h)/3}}}<br>
So {{{(4*9*5)/3}}} for the first one, and so on....