i need to figure out the surface area, i’m really bad at trianglss

Answer:
(288√3 + 504) square mm
Step-by-step explanation:
Area of two equilateral triangles:
2(1/2)(24)(12√3) = 288√3 square mm
Area of three rectangles:
3(24)(7) = 504 square mm
Total area: (288√3 + 504) square mm