**Triangular Prism:**

**Formulas:**

-A = b x h/2

-A = l x w

**TSA**= A1 + A2 + A3 + A4 + A5

To the find the total surface area of a **triangular prism** you have to find the area of each of the **five faces**. After finding all the areas, you then have to **add** all of them up to get the TSA.

**Cylinder:**

**Formulas:**

- r = d/2 or d = 2r

- C = π d

- A = π x r x r

- A = l x w

**TSA** = A1 + A2 + A3

To find the total surface area of a **cylinder** you have to find the area of each of the **three faces**. After that you have to **add** up the areas of each faces and you will then get your TSA.

**Rectangular Prism:**

**Formula:** A = l x w

**TSA** = A1 + A2 + A3 + A4 + A5 + A6

To find the total surface area of a **rectangular prism** you have find the area of each of the **six faces**. After finding the areas of each faces, you **add** it all up to get the total surface area or the TSA.

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