Answer:
128.605
Step-by-step explanation:
The bottom side has 2 identical trianges, so you can multiply base*height of one of them to get the area of both combined:
[tex](8.5m)(10.2m)\\86.7m^2[/tex]
Same with the top side:
[tex](4.93m)(8.5m)\\41.905m^2[/tex]
Add them:
[tex]86.7m^2+41.905m^2\\128.605m^2[/tex]
