Another way to reflect heat is to install a radiant barrier on the underside of your roof. A radiant barrier is simply a sheet of aluminum foil with a paper backing. When installed correctly, a radiant barrier can reduce heat gains through your ceiling by about 25%.he most effective method to cool your home is to keep the heat from building up in the first place. The primary source of heat buildup (i.e., gain) is sunlight absorbed by your house through the roof, walls, and windows.
The bases of a square prism are squares. A Prism with at least one pair of opposite faces that are squares is called square prism. This type of prism has six faces, and all the faces of the prism are rectangle in shape except bases. It can also be described as a right prism with square bases.
Ask:Which solid figures have faces that are polygons? (rectangular prism, cube, and pyramid) Say:Put the other solid figures aside for now. Ask:Which solid figure has faces that are rectangles? (rectangular prism) Say:Count the number of faces a rectangular prism has. Mark an X on each face as you count. Copy this table on the board as students are working. Ask:How many faces does a rectangular prism have? (6) Record 6 on the table. Say:The line segment where two faces meet is an edge. Count the number of edges a rectangular prism has. Mark an X on each edge as you count. Ask:How many edges does a rectangular prism have? (12) Record 12 on the table. Say:The point where edges meet is a vertex.