The surface area of trapezoidal prism is: D. 385.6 yd².
What is the Surface Area of a Trapezoidal Prism?
Surface area = (b1 + b2)h + PH.
The parameters are:
b1 = 10 yd
b2 = 6 yd
h = 4.6 yd
Perimeter of base (P) = 6 + 10 + 5 + 5 = 26 yd
H = 12 yd
Plug in the values
Surface area = (10 + 6)4.6 + (26)(12)
Surface area = 385.6 yd²
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