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.

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

the answer is 99.