What is the surface area of the triangular prism?

Triangular prism

a
152 square feet
b
172 square feet
c
252 square feet
d
264 square feet

Option c. 252 square feet

Step-by-step explanation:

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Area of the triangular sides  =

                                              =

                                              = 2(6)

                                              = 12 feet²

Area of the rectangular base = A = b × h

                                                = 20 × 3

                                                = 60 feet²

Area of the lateral side =  20 × 5

                                       = 100 feet²

Area of the vertical rectangular side = 20 × 4

                                                            = 80 feet²

Total surface area = 12 + 60 + 100 + 80

                              = 252 feet²

Total surface area of the triangular prism is 252 square feet.

step-by-step explanation:

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