Find the surface area of the prism. Write your answer as a decimal.

Surface area of prism is 382.5  sq. in.

Step-by-step explanation:

Total Surface area of prism = Sum of area of all faces

So, Area of triangle ABC =

Area of triangle ABC =

Area of triangle ABC =

Area of triangle DEF = Area of triangle ABC =45 sq. in.

Area of rectangular base ACED=

Area of ABFD =

Area of CBFE=

Total Surface area of prism = Sum of area of all faces =45+45+121.5+81+90=382.5  sq. in.

Hence Surface area of prism is 382.5  sq. in.

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step-by-step explanation:

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use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative