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 .
A regular octagon has 0 right anglesâall its vertices are 135Ë. The angle measurement can be found through the formula 180Ë(nâ2)n, where n is the number of sides in a regular n-gon. This isn't to say octagons can't have right angles. The following picture is of an irregular octagon with 2 right angles.