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 rectangular pyramid has a rectangular base and four triangular sides that meet at an apex. If the pyramid is a right pyramid, then the apex is located above the center point of the rectangular base. The rectangular base has four corners, which means that it has four vertices. At the apex of the pyramid, the four triangular sides intersect and create another vertex at the apex. A rectangular pyramid therefore has a total of five vertices.