Answer:
Answers are below in bold
Step-by-step explanation:
1) A = 1/2bh          Use this equation to find the area of each triangular base
A = 1/2(8)(6)         Multiply
A = 1/2(48)           Multiply
A = 12cm²           Area of each triangular base
2) A = L x W        Use this equation to find the area of the bottom rectangular face
A = 20 x 8          Multiply
A = 160 cm²       Area of the bottom rectangular face
3) A = L x W        Use this equation to find the area of the back rectangular face
A = 20 x 6          Multiply
A = 120 cm²       Area of the back rectangular face
4) A = L x W        Use this equation to find the area of the sloped rectangular face
A = 20 x 10         Multiply
A = 200 cm²      Area of the sloped rectangular face
5) To find the total surface area of the triangular prism, add together all of the numbers.
A = 12 + 12 + 160 + 120 + 200       Add
A = 504 cm²       Total area of the triangular prism