Because it is a cleaner source of power than oil or coal, nuclear energy is often mistakenly referred to as a renewable resource. The sources of the energy that people use the world over fall into two general categories: renewable and nonrenewable.While the supply of renewable resources, such as sunshine and wind, is virtually limitless, nonrenewable resource supplies are finite.Some nonrenewable resources, including oil and coal, are the product of millions of years of conversion from fossils, the buried remains of ancient plants and animals.ecause it is a cleaner source of power than oil or coal, nuclear energy is often mistakenly referred to as a renewable resource. The sources of the energy that people use the world over fall into two general categories: renewable and nonrenewable.
A regular octagon has 8 lines of symmetry and one center point of symmetry. An octagon can also have fewer lines of symmetry: 0, 2 or 4 . A regular octagon has 8 lines of symmetry and one center point of symmetry <br /> <br /> An octagon can also have fewer lines of symmetry: 0, 2 or 4 .
As long as your shape has eight sides, angles of smaller or greater size than 135o can be used, resulting in an irregular octagon. The exception to this rule is for angles of exactly 180o. Generally, the two line segments that make up such an angle can be considered a single edge in a polygon.