total surface area of prisms

 

a prism is a three – dimensional object that has a uniform polygon cross section.

eg: cube, rectangular prism or cuboid, triangular prism or wedge, trapezoidal prism

 

the total surface area ( TSA ) of a solid is the combined area of all external surfaces.

 

total surface area of a rectangular prism

TSA = 2 ( R1 + R2 + R3 )

where  R1 is the area of the front face, R2 is the area of the side face and R3 is the area of the side face of the rectangular prism

 

total surface area of a triangular prism

TSA = 2 ( T ) + [ (R1 + R2 + R3) ]

where T is the area of the triangular face and R1,R2 and R3 are the areas of the rectangular or square faces

 

total surface area of a trapezoidal prism

TSA = 2 ( TR ) + [ (R1 + R2 + R3) ]

where TR is the area of the trapezoid face and R1,R2 and R3 are the areas of the rectangular or square faces

 

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