The total surface area of the trapezoidal prism is 180m². Option C
Total surface area of a trapezoidal prism
The formula for the total surface area of a trapezoidal prism is;
Total surface area = h (b + d) + l (a + b + c + d)
Where
b and d are parallel sides = 3, 9
h is the distance = 8
l is the length of the trapezoidal prism. = 12
Substitute into the formula
Total surface area = [tex]8(3 + 6) + 12(3 + 6)[/tex]
Total surface area = 72 + 108
Total surface area = 180 m²
Thus, the total surface area of the trapezoidal prism is 180m². Option C
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