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 is a solid which has a rectangle shape at the base and the four faces on the four sides of the rectangle which are isosceles triangles meeting at a point in the heavens. So the rectangular pyramid has 5 faces - one a rectangle at the base and the other four are isosceles triangles on the four faces. It has 8 edges - four at the base and four above the base and meeting at a common point.