Much of the cost of cooling your home can be saved by passive cooling techniques which don't require expensive retrofits or professional installations.Here are suggestions for free, or low-cost, ways to cool your home with less impact on the environment and your energy bill.ir conditioners can use up to 1/6th of U.S. electricity and, on hot summer days, consume 43% of the U.S. peak power load. According to the US Department of Energy, heating and cooling systems emit over a half billion tons of carbon dioxide into the atmosphere each year, adding to global warming.
A rectangular pyramid has 5 faces. How many triangles and how many rectangles form a rectangular pyramid?
A square pyramid has a square base. It means, it has. 5 faces. 1 square face that is the bottom and 4 isosceles triangles above. 5 vertices, 4 at the base and 1 above. The 4 vertices at the base have 3 edges meeting together while the 1 above has 4 edges meeting together. 8 edges, 4 at the base and 4 above. 2 diagonals at the base.