Answer:
the surface area of a polyhedron can be found by sum of the area of all its sides.
Step-by-step explanation:
The surface area is nothing find the area of each faces and add them together.
Surface area = Sum of area of each faces.
Polyhedron is a three dimensional figure.
For instance, cube a polyhedron which has 6 square faces.
Surface area of a cube = [tex]a^{2} + a^2 + a^2 + a^2 + a^2 + a^2 = 6a^2[/tex], where "a" is the side of the square.
Therefore, the surface area of a polyhedron can be found by sum of the area of all its faces.
