you can split the figure in multiple parts to make it easier:
area rect. 1;
9m×4m= 36m²
area rect 2:
7m×3m= 21m²
area tri.:
18m× (4m+7m+4m-5m)
=18m× 10m
=180m²
total area:
36m²+21m²+180m²= 237m²
Answer:
147 is the correct answer
Step-by-step explanation:
