18. What is the area of the trapezoid? A. 112.5 mm2 B. 72 mm C. 40.5 mm2 D. 56.25 mm2

Answer: 56.25 mm squared
Step-by-step explanation: Remember that the formula is base one plus base two divided by two and then multiplied by the height. Therefore the expression used to find this answer would be:
[(16+9) / 2]4.5
Hope this helped!