**In this video you will learn step by step directions for finding the surface area of an octagonal prism.**

**Video Guide**

0:46 Introduction to finding the surface area

1:04 How to find the base area of the octagonal prism

1:16 How to find the apothem.

2:26 Use trig to find the lateral area.

4:10 Insert the apothem length into the base area formula

5:11 Find the lateral area by using ( perimeter times height )

6:13 Add the base area and the lateral area for the total surface area.

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