By Sunil Tanna

ISBN-10: 150308485X

ISBN-13: 9781503084858

This publication is a advisor to the five Platonic solids (regular tetrahedron, dice, ordinary octahedron, normal dodecahedron, and common icosahedron). those solids are vital in arithmetic, in nature, and are the one five convex normal polyhedra that exist.

issues lined comprise:

- What the Platonic solids are
- The heritage of the invention of Platonic solids
- The universal positive factors of all Platonic solids
- The geometrical info of every Platonic strong
- Examples of the place every one form of Platonic reliable happens in nature
- How we all know there are just 5 sorts of Platonic stable (geometric facts)
- A topological facts that there are just 5 kinds of Platonic sturdy
- What are twin polyhedrons
- What is the twin polyhedron for every of the Platonic solids
- The relationships among every one Platonic reliable and its twin polyhedron
- How to calculate angles in Platonic solids utilizing trigonometric formulae
- The courting among spheres and Platonic solids
- How to calculate the outside sector of a Platonic sturdy
- How to calculate the amount of a Platonic sturdy

additionally integrated is a quick advent to a few different fascinating varieties of polyhedra – prisms, antiprisms, Kepler-Poinsot polyhedra, Archimedean solids, Catalan solids, Johnson solids, and deltahedra.

a few familiarity with uncomplicated trigonometry and intensely easy algebra (high college point) will let you get the main out of this e-book - yet which will make this ebook obtainable to as many of us as attainable, it does comprise a short recap on a few beneficial simple strategies from trigonometry.