The open area is an important parameter for the wedge wire screens. Quick example of finding the surface area of a wedge. Assuming you mean a wedge cut from a cylinder think a wedge of cheese and that we know the radius r central angle maththetamath and height h we have three different surfaces to find.
So the triangle has an area of 12 5 12 30 sq in but there are two triangles so double it 60 sq in.
Base SA 2pr 2. F a c 24h 2 b 2 b h 2 a - c 2 SA F ab Where a Base Side b Base Width c Top Side h Height F Lateral Area SA Surface Area Example. A wedge is just a triangle with substance. The surface area formula for a cone given its diameter or radius and height is p x diameter 22 p x diameter 2 x diameter 22 height2 where diameter 2 is the radius of the base d 2 x r so another way to write it is p x radius2 p x radius x radius2 height2 as seen in the figure below.