Answer:
Dimensions: 24, 24, 104
Total: 152 cm²
Step-by-step explanation(Triangles):
Given the triangles are equal to each other, we only need to solve one to get the other.

Therefore, the triangles' area are 24 cm.
Step-by-step explanation(Trapezoid):
Because of the height being unknown, we can define that using the side triangles. These triangles have a height of 8, so that also means the trapezoid has a height of 8. Now we can solve.

Step-by-step explanation(Addition):
Finally, we add the 3 values.

Lastly,
Hope this helps!