Answer:
The surface area is 2,886 cm^2
Explanation:
In this question we are asked to calculate the surface area of a rectangular octagonal prism.
The correct mathematical formula to use is as follows;
Mathematically, the surface area is
A = 8ah + 4(1+√2)•a^2
From the question, we identify the value of a as 10cm and the value of h as 24cm
We plug these two values into the equation above to yield the following;
A = 8(10)(24) + 4(1 + √2) * 10^2
A = 1,920 + 400(2.4142)
A = 1920 + 965.685
A = 2,885.69 or approximately 2,886 cm^2