Question 1197556
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The trapezoid area is {{{((b[1] + b[2])/2))}}}*h ={{{ ((40+50)/2)*12}}} = 540ft^2.


Allowing 5% waste, the required area = 540*1.05 = 567 ft^2.


The number of cartoons required:  567 ft^2/ 45 ft^2 = 12.6.


Since it is greater than 12, we  {{{highlight(highlight(MUST))}}}  round to the closest  {{{highlight(highlight(greater))}}}  integer number, which is 13.


<U>ANSWER</U>. 13 cartoons tiles.
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