Attached is a picture of the shape I would like the formula for to calculate the area. Can someone help please?

How do we get the surface area and volume of a truncated hexagon... Ps.. don't make it too complicates.. because, I'm only in grade 9... Tnx..

What is the surface area of a triangular prism? Length = 6 Width = 4 Height = 10

Well its my first time using this and I hope I get the answer pretty quick I'm doing a project of this and I made it out of wood... and I need to find the S A of a icosahedron... and the side length of 1 of the triangles is 4 inches... I'm kind of lost on how to do this and help would be...

Can someone please explain to me how I would get the surface area of a parallelepiped if I'm given three vectors of the parallelepiped. *parallelepiped is parallelogram only 3-dimensional. Also what's the difference between geometric and algebraic vectors? Edit: I know surface area = 2lw...