Find the whole surface area of a right prism whose height is 75 cm and whose base is a regular octagon of side 12 cm.

Explanation

To find the total surface area of a right prism with a height of 75 cm and a base that is a regular octagon with a side length of 12 cm, we can follow these steps:

### Step 1: Understand the formula for the surface area of a prism
The total surface area \( A \) of a right prism can be calculated using the formula:
\[ A = 2B + Ph \]
where:
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