Answer:
D. 336 ft²
Explanation:
There are 2 triangles of the same dimensions and 3 rectangles of different dimensions
✔️Area of the two triangles with the following dimensions:
b = 8 ft
h = 6 ft
Area of the two triangles = 2(bh)/2
= 2(8*6)/2
= 48 ft²
✔️Area of the rectangle with the following dimensions:
length = 12 ft
width = 10 ft
Area = length*width = 12*10
= 120 ft²
✔️Area of the rectangle with the following dimensions:
length = 12 ft
width = 8 ft
Area = length*width = 12*8
= 96 ft²
✔️Area of the rectangle with the following dimensions:
length = 12 ft
width = 6 ft
Area = length*width = 12*6
= 72 ft²
✅Total surface area of the object = 48 + 120 + 96 + 72 = 336 ft²