What's the surface area for a________ with edge length 5 (tetrahedron) Hexahedron Octahedron Dodecahedron ...

How do I figure out the following question: A close rectangular box has a surface area of 1000 square centimeters. Its length is twice its width and its height is 6 times its width, what is the volume?

A trapezoid's parallel sides are 8 decimeters and 18dm, the other sides are 8.1dm and 5dm. How do I find surface area and height of the trapezoid? We're studying trigonometry at the moment, but I can't think of any way to solve it this way, so I need your help, thanks.

Hello! I am having difficulty answering this question. If someone can please tell me how to solve these geometry problems, I will be very grateful! Thank you in advance! =) Find the surface area of the following regular polyhedra to the nearest cm^2 (squared). a. Tetrahedron with edge length...