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?
How many faces does a pentagonal pyramid have? Pyramids. In geometry, a pyramid is a 3-dimensional shape with a polygon as the base. Each side of the base polygon has a face which meets at the top point. There are many types of pyramids, and they often get their names from the specific polygon making up the base: triangular pyramid, hexagonal pyramid, pentagonal pyramid, etc. Answer and Explanation: A pentagonal pyramid has five faces and one base. This is because a pentagon has five sides. Since the pentagon is the base of this pyramid, each side of the pentagon has a triangle attached to it that comes up to a single point at the top.