Surface Area of a Triangular Prism
POINT
Add the areas of the two triangular bases and the three rectangular side faces. Lateral area = perimeter of triangular base × prism length; total area = lateral area + 2 × triangular base area.
Example
Find the surface area of the triangular prism shown.
Practice
Find the surface area of each triangular prism.
01
Find the surface area of the triangular prism shown.
440 cm²
02
Find the surface area of the triangular prism shown.
672 cm²
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