To find the surface area of an prism you must do the following:
EXAMPLE: S.A.( SURFACE AREA) and L.A.(LATERAL AREA)
S.A.=L.A. +2B
S.A.=113 +2 (28)
S.A.= 113 + 56
S.A.=169 IN.2( THE 2 MEANS SQUARE ROOT)
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The Surface area of a triangle = 0.5*base*height The volume of a prism = area of its cross-section*length
Find the area of each face and add them all up.
Find the area of each face separately and then add them together for the total surface area.
2*area of triangular faces + perimeter of triangle*length of prism (not prisim).
The surface area of a cylinder prism has round shape and the surface of a rectangular prism has a square shape.